A044184 Numbers n such that string 6,4 occurs in the base 7 representation of n but not of n-1.

46, 95, 144, 193, 242, 291, 322, 340, 389, 438, 487, 536, 585, 634, 665, 683, 732, 781, 830, 879, 928, 977, 1008, 1026, 1075, 1124, 1173, 1222, 1271, 1320, 1351, 1369, 1418, 1467, 1516, 1565, 1614, 1663, 1694, 1712, 1761, 1810

Offset

1,1

Links

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

Mathematica

Select[Range[2000], MemberQ[Partition[IntegerDigits[#, 7], 2, 1], {6, 4}] && !MemberQ[Partition[IntegerDigits[#-1, 7], 2, 1], {6, 4}]&] (* Harvey P. Dale, Nov 13 2013 *)

Crossrefs

Sequence in context: A007630 A004923 A260568 * A044565 A252695 A252688

Adjacent sequences: A044181 A044182 A044183 * A044185 A044186 A044187

Keyword

nonn,base

Author

Clark Kimberling

Status

approved