login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A121321
Numbers k such that every digit occurs at least once in k^4.
3
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
EXAMPLE
763^4 = 338920744561 contains every digits at least once.
MATHEMATICA
Select[Range[2692], ContainsAll[IntegerDigits[#^4], Range[0, 9]]&] (* James C. McMahon, Oct 16 2024 *)
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
KEYWORD
nonn,base
AUTHOR
Tanya Khovanova, Aug 25 2006
STATUS
approved