A050748 Numbers k such that the decimal expansion of k^9 contains no pair of consecutive equal digits.

0, 1, 2, 3, 5, 7, 9, 11, 12, 16, 18, 25, 26, 29, 38, 41, 44, 64, 67, 75, 76, 78, 85, 89, 95, 97, 101, 107, 116, 125, 134, 135, 138, 139, 149, 176, 185, 205, 215, 221, 241, 262, 268, 272, 301, 315, 324, 325, 327, 336, 343, 344, 351, 352, 355, 357, 374, 382, 386

Offset

1,3

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

Select[Range[0, 400], FreeQ[Differences[IntegerDigits[#^9]], 0]&] (* Harvey P. Dale, Aug 21 2024 *)

Crossrefs

Cf. A050756.

Sequence in context: A190785 A186290 A061979 * A348638 A079051 A226047

Adjacent sequences: A050745 A050746 A050747 * A050749 A050750 A050751

Keyword

nonn,base

Author

Patrick De Geest, Sep 15 1999

Status

approved