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A287340 Positions of 2 in A287337. 4
9, 11, 15, 17, 27, 29, 33, 35, 39, 41, 45, 47, 49, 51, 59, 61, 71, 73, 77, 79, 81, 83, 91, 93, 109, 111, 115, 117, 127, 129, 133, 135, 139, 141, 145, 147, 149, 151, 159, 161, 171, 173, 177, 179, 181, 183, 191, 193, 203, 205, 209, 211, 213, 215, 223, 225, 235 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {2, 0}, 2 -> 0}] &, {0}, 12] (* A287337 *)
Flatten[Position[s, 0]] (* A287338 *)
Flatten[Position[s, 1]] (* A287339 *)
Flatten[Position[s, 2]] (* A287340 *)
CROSSREFS
Sequence in context: A113339 A270190 A320701 * A037009 A163096 A027694
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 24 2017
STATUS
approved

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Last modified March 28 15:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)