A044185 Numbers n such that string 6,5 occurs in the base 7 representation of n but not of n-1.

47, 96, 145, 194, 243, 292, 329, 341, 390, 439, 488, 537, 586, 635, 672, 684, 733, 782, 831, 880, 929, 978, 1015, 1027, 1076, 1125, 1174, 1223, 1272, 1321, 1358, 1370, 1419, 1468, 1517, 1566, 1615, 1664, 1701, 1713, 1762, 1811

Offset

1,1

Links

Table of n, a(n) for n=1..42.

Mathematica

Select[Range[2000], MemberQ[Partition[IntegerDigits[#, 7], 2, 1], {6, 5}] && !MemberQ[ Partition[IntegerDigits[#-1, 7], 2, 1], {6, 5}]&] (* Harvey P. Dale, May 21 2013 *)

Crossrefs

Sequence in context: A004963 A061153 A335076 * A044566 A349231 A141944

Adjacent sequences: A044182 A044183 A044184 * A044186 A044187 A044188

Keyword

nonn,base

Author

Clark Kimberling

Status

approved