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A044464
Numbers n such that string 1,1 occurs in the base 5 representation of n but not of n+1.
0
6, 34, 56, 81, 106, 131, 174, 181, 206, 231, 256, 284, 306, 331, 356, 381, 409, 431, 456, 481, 506, 534, 556, 581, 606, 631, 659, 681, 706, 731, 874, 881, 909, 931, 956, 981, 1006, 1034, 1056, 1081, 1106, 1131, 1159, 1181, 1206
OFFSET
1,1
MATHEMATICA
Flatten[Position[Partition[Table[If[MemberQ[Partition[ IntegerDigits[ n, 5], 2, 1], {1, 1}], 1, 0], {n, 1300}], 2, 1], {1, 0}]] (* Harvey P. Dale, Mar 11 2015 *)
CROSSREFS
Sequence in context: A190644 A011798 A222174 * A113528 A152528 A135733
KEYWORD
nonn,base
STATUS
approved