Life Period-2 Oscillators

3-bit | 6-bit | 8-bit | 9-bit | 10-bit | 11-bit | 12-bit | 13-bit | 14-bit | 15-bit | 16-bit | 17-bit | 18-bit | 19-bit | 20-bit | Larger | Scrubbers

The 1 three-bit period-2 oscillator:

3b P2
Blinker [2]

The 3 six-bit period-2 oscillators:

6-bit P2
Toad [3] Clock [4] Beacon [3]

The 1 eight-bit period-2 oscillator:

8b P2
Bipole [5]

The 1 nine-bit period-2 oscillator:

9b P2
Tripole [7]

The 1 ten-bit period-2 oscillator:

10b P2
Quadpole [6]

The 1 eleven-bit period-2 oscillator:

11b P2
Pentapole [10]

The 6 twelve-bit period-2 oscillators:

12-bit period-2 oscillators
Up beacon on table [6] P2-12.1 [18] P2-12.2 [12] Down beacon on table [6] Phoenix [10] Hexapole [12]

The 3 thirteen-bit period-2 oscillators:

13-bit P2
P2-13.1 [24] Bipole tie boat [8] Heptapole [16]

The 20 fourteen-bit period-2 oscillators:

14-bit period-2 oscillators
Up beacon on covered table [6] P2-14.1 [28] Up beacon on up long bookend [6] Test-tube baby [12] Up beacon on down long bookend [6] Up bipole on table [9] Down beacon on covered table [8] Down beacon on down long bookend [6] P2-14.2 [27] Beacon w/cover [9]
P2-14.3 [17] P2-14.4 [x] Down bipole on table [11] Down beacon on up long bookend [6] Bipole tie snake [8] Cavity [8] Bipole tie ship [8] Bipole tie carrier [12] Tripole tie boat [13] Octopole [20]

The 29 fifteen-bit period-2 oscillators:

15-bit period-2 oscillators

The 98 sixteen-bit period-2 oscillators.

Due to space limitations, these are shown on a separate page.

The 199 seventeen-bit period-2 oscillators:

Due to space limitations, these are shown on a separate page.

The 484 eighteen-bit period-2 oscillators:

Due to space limitations, these are shown on a separate page.

Syntheses for three of these are shown here:
18-bit P2
Spark coil [4] Pincers, Great on-off [5] P2-18.1 [11]

The 1083 nineteen-bit period-2 oscillators:

Unfortunately, due to space limitations, these cannot be shown here.

Syntheses for three of these are shown here:
19-bit P2
Spark coil w/tub [6] Bun on beacon beside snake [11] Bun on beacon beside carrier [11]

2 twenty-bit period-2 oscillators:

The list of twenty-bit period-2 oscillators has not yet been computed.

Syntheses for two of these are shown here:
20-bit period-2
Two bookends on beacon [10] Cavity w/two tubs [8]

13 larger period-2 oscillators:

larger period-2 oscillators
P2-21.1 [12] Two blocks on armpit [10] Block and down boat on armpit [11] Spark coil tie boat [5] Washing machine [8] Block and down long boat on armpit [12] Open paper- clips [9] Two boats on two ponds [16] Block and down very long boat on armpit [12] Spark coil tied to two boats (up) [6]
Spark coil tied to two boats (down) [6] Two beacons on two ponds [14] Four armpits [23]


Some larger period-2 Scrubbers:

The Scrubber is a billiard-table oscillator consisting of a forming traffic light surrounded by induction coils. Here are several synthesizable variations.
larger period-2 scrubbers
1x1 Scrubber #1 [10] 1x1 Scrubber #2 [14] 1x1 Scrubber #3 [14] 1x1 Scrubber #4 [17] 1x1 Scrubber #5 [23] 1x1 Scrubber #6 [10]
2x1 Scrubbers #1 [23] 2x1 Scrubbers #2 [24] 2x1 Scrubbers #3 [17] 2x1 Scrubbers #4 [18] 2x1 Scrubbers #5 [18] 2x1 Glasses [17]
2x2 Scrubbers #1 [23] 2x2 Scrubbers #2 [24] 2x2 Scrubbers #3 [28] 3x2 Scrubbers [37] 4x2 Scrubbers [70]

Other oscillators and pseudo-oscillators: P2, P2 pseudo, P3, P4, P5, P6, P8, P15, P30.

Other types: still-lifes, pseudo-still-lifes, oscillators and pseudo-oscillators, spaceships, constellations, metheuselahs.

See also: Life objects sorted by: counts, gliders, name, size, or type.

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