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A291670
Numbers k such that 2 is the smallest decimal digit of k^4.
4
4, 5, 22, 72, 74, 128, 138, 154, 244, 256, 272, 292, 388, 404, 426, 434, 494, 506, 542, 562, 718, 756, 818, 868, 876, 1266, 1344, 1372, 1376, 1434, 1442, 1512, 1524, 1562, 1606, 1766, 1776, 2222, 2268, 2278, 2292, 2306, 2338, 2392, 2396, 2426, 2474, 2574
OFFSET
1,1
EXAMPLE
5 is in the sequence because 5^4 = 625, the smallest decimal digit of which is 2.
PROG
(PARI) select(k->vecmin(digits(k^4))==2, vector(10000, k, k))
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Colin Barker, Aug 29 2017
STATUS
approved