A249372 Numbers k such that A156257(k) != A074292(k).

47, 48, 56, 57, 128, 129, 137, 139, 147, 148, 176, 177, 182, 183, 185, 187, 188, 190, 192, 194, 195, 196, 197, 199, 201, 202, 203, 205, 207, 209, 210, 211, 212, 214, 218, 220, 222, 223, 227, 229, 230, 232, 233, 235, 237, 238, 239, 240, 242, 244

Offset: 1

Author

Jean-Christophe Hervé, Nov 22 2014

Keywords

• nonn

Comments

Related to the position and frequency of runs of length 2 in the Kolakoski sequence A000002. Possible values of the difference A156257 - A074292 are -1, 0, 1, and a 1 seems to be always followed soon by a -1, indicating that the two sequences A074292 and A156257 are not equal but rather close.

Links

• Jean-Christophe Hervé, Table of n, a(n) for n = 1..49383

Crossrefs

Cf. A000002, A074292, A156257, A247176 (values of the difference).