A044230 Numbers n such that string 5,3 occurs in the base 8 representation of n but not of n-1.

43, 107, 171, 235, 299, 344, 363, 427, 491, 555, 619, 683, 747, 811, 856, 875, 939, 1003, 1067, 1131, 1195, 1259, 1323, 1368, 1387, 1451, 1515, 1579, 1643, 1707, 1771, 1835, 1880, 1899, 1963, 2027, 2091, 2155, 2219, 2283, 2347

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Mathematica

Select[Range[2400], MemberQ[Partition[IntegerDigits[#, 8], 2, 1], {5, 3}] && !MemberQ[Partition[IntegerDigits[#-1, 8], 2, 1], {5, 3}]&] (* Harvey P. Dale, May 26 2011 *)

Crossrefs

Sequence in context: A115606 A194773 A154506 * A044611 A246931 A142944

Adjacent sequences: A044227 A044228 A044229 * A044231 A044232 A044233

Keyword

nonn,base

Author

Clark Kimberling

Status

approved