A121321 Numbers k such that every digit occurs at least once in k^4.

763, 767, 1066, 1088, 1206, 1304, 1425, 1557, 1561, 1634, 1653, 1712, 1739, 1782, 1818, 1839, 1866, 1878, 1975, 2032, 2045, 2055, 2134, 2192, 2232, 2233, 2299, 2318, 2339, 2347, 2358, 2425, 2441, 2489, 2509, 2511, 2575, 2646, 2682, 2692

Offset

1,1

Links

Lars Blomberg, Table of n, a(n) for n = 1..10000

Example

763^4 = 338920744561 contains every digits at least once.

Prog

(Magma) [ n: n in [0..2695] | Seqset(Intseq(n^4)) eq {0..9} ]; // Bruno Berselli, May 17 2011
(PARI) isok(k) = #Set(digits(k^4)) == 10;

Crossrefs

Cf. A119735 (in k^3), A054038 (in k^2).

Sequence in context: A145718 A049516 A049517 * A084072 A049534 A245007

Adjacent sequences: A121318 A121319 A121320 * A121322 A121323 A121324

Keyword

nonn,base

Author

Tanya Khovanova, Aug 25 2006

Status

approved