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A043883 Numbers n such that 1 and 2 occur juxtaposed in the base 4 representation of n but not of n+1. 0
6, 9, 22, 27, 39, 41, 54, 57, 70, 73, 86, 91, 111, 118, 121, 134, 137, 159, 167, 169, 182, 185, 198, 201, 214, 219, 231, 233, 246, 249, 262, 265, 278, 283, 295, 297, 310, 313, 326, 329, 342, 347, 367, 374, 377, 447, 454, 457, 470 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..49.

CROSSREFS

Sequence in context: A043103 A242756 A268665 * A112393 A006132 A033705

Adjacent sequences:  A043880 A043881 A043882 * A043884 A043885 A043886

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 5 13:26 EST 2019. Contains 329751 sequences. (Running on oeis4.)