A043015 Base-7 palindromes that start with 1.

1, 8, 50, 57, 64, 71, 78, 85, 92, 344, 400, 456, 512, 568, 624, 680, 2402, 2451, 2500, 2549, 2598, 2647, 2696, 2752, 2801, 2850, 2899, 2948, 2997, 3046, 3102, 3151, 3200, 3249, 3298, 3347, 3396, 3452, 3501, 3550, 3599, 3648

Offset

1,2

Links

Harvey P. Dale, Table of n, a(n) for n = 1..3000

Mathematica

b7pQ[n_]:=Module[{idn7=IntegerDigits[n, 7]}, idn7[[1]]==1&&idn7== Reverse[ idn7]]; Select[Range[4000], b7pQ]

Crossrefs

Sequence in context: A299883 A043398 A038481 * A076286 A299049 A299811

Adjacent sequences: A043012 A043013 A043014 * A043016 A043017 A043018

Keyword

nonn,base

Author

Clark Kimberling

Status

approved