A050756 - OEIS

A050756

Ninth powers containing no pair of consecutive equal digits.

0, 1, 512, 19683, 1953125, 40353607, 387420489, 2357947691, 5159780352, 68719476736, 198359290368, 3814697265625, 5429503678976, 14507145975869, 165216101262848, 327381934393961, 618121839509504, 18014398509481984

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OFFSET

0,3

LINKS

Table of n, a(n) for n=0..17.

MATHEMATICA

Select[Range[0, 90]^9, FreeQ[Differences[IntegerDigits[#]], 0]&] (* Harvey P. Dale, Dec 27 2011 *)

CROSSREFS

Cf. A043096, A001017, A050748.

Sequence in context: A352055 A351607 A343289 * A179665 A056586 A096962

Adjacent sequences: A050753 A050754 A050755 * A050757 A050758 A050759

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Sep 15 1999

STATUS

approved