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A284234
Decimal representation of generation n in the reversible cellular automaton RCA(2) when started with a single ON cell at generation 0.
3
1, 3, 1, 15, 21, 3, 81, 255, 69, 819, 1089, 15, 4373, 13059, 4433, 65535, 83269, 12339, 345409, 986895, 263189, 3158019, 4210769, 255, 16842821, 50529075, 16843841, 252641295, 353702165, 50541315, 1364267345, 4294967295, 1162102085, 13693562931, 18341971265
OFFSET
0,2
EXAMPLE
The fourth generation (starting at 0) of RCA(2) is x.x.x where "x" is an ON cell and "." is OFF. Treating this as a binary number yields 10101 which is 21 in decimal notation. Thus a(4) = 21.
CROSSREFS
Sequence in context: A095922 A263632 A284861 * A365338 A089278 A213245
KEYWORD
nonn
AUTHOR
Robert Price, Mar 23 2017
STATUS
approved