A044205 Numbers n such that string 2,2 occurs in the base 8 representation of n but not of n-1.

18, 82, 144, 210, 274, 338, 402, 466, 530, 594, 656, 722, 786, 850, 914, 978, 1042, 1106, 1152, 1234, 1298, 1362, 1426, 1490, 1554, 1618, 1680, 1746, 1810, 1874, 1938, 2002, 2066, 2130, 2192, 2258, 2322, 2386, 2450, 2514

Offset

1,1

Links

Table of n, a(n) for n=1..40.

Mathematica

Select[Range[2800], MemberQ[Partition[IntegerDigits[#, 8], 2, 1], {2, 2}]&& !MemberQ[Partition[IntegerDigits[#-1, 8], 2, 1], {2, 2}]&]  (* Harvey P. Dale, Oct 13 2011 *)

Crossrefs

Sequence in context: A156218 A118293 A043430 * A044586 A159460 A043181

Adjacent sequences: A044202 A044203 A044204 * A044206 A044207 A044208

Keyword

nonn,base

Author

Clark Kimberling

Status

approved