A050764 Numbers of form k^k (for values of k see A050763) containing no pair of consecutive equal digits (probably finite).

1, 4, 27, 256, 3125, 823543, 387420489, 437893890380859375, 39346408075296537575424

Offset

1,2

Links

Table of n, a(n) for n=1..9.

Mathematica

Select[Table[k^k, {k, 20}], FreeQ[Differences[IntegerDigits[#]], 0]&] (* Harvey P. Dale, Aug 23 2019 *)

Crossrefs

Cf. A043096, A000312, A050763, A049329.

Sequence in context: A000312 A086783 A301742 * A302108 A240582 A338693

Adjacent sequences: A050761 A050762 A050763 * A050765 A050766 A050767

Keyword

nonn,base

Author

Patrick De Geest, Sep 15 1999

Extensions

Since this is a list, it has offset 1 and does not contain any repeated terms. - N. J. A. Sloane, Aug 24 2019

Status

approved