A156264 a(n) = A000002(3*n-2), where A000002 is the Kolakoski sequence.

1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 2, 2, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

Offset

1,7

Links

Antti Karttunen, Table of n, a(n) for n = 1..12000

Prog

(PARI)
up_to = 12000;
v000002 = [1, 2, 2]; m=3; while(length(v000002) < 3*(1+up_to), v000002 = concat( v000002, vector(v000002[m], i, 2-m%2)); m++); \\ after PARI-code in A000002.
A000002(n) = v000002[n];
A156264(n) = A000002((3*n)-2); \\ Antti Karttunen, Dec 15 2017

Crossrefs

Cf. A000002, A074264.

Sequence in context: A365685 A346418 A288120 * A249770 A298481 A324872

Adjacent sequences: A156261 A156262 A156263 * A156265 A156266 A156267

Keyword

nonn

Author

Benoit Cloitre, Feb 07 2009

Status

approved