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A180454
Numbers that are 5-digit palindromes in at least two bases.
1
2293, 3074, 5001, 5854, 6148, 6953, 7409, 7703, 7801, 8200, 10252, 10658, 11314, 12547, 13131, 13331, 13459, 14510, 14762, 15005, 15731, 16561, 16708, 17876, 19636, 20010, 23341, 24762, 25752, 26462, 26662, 26962, 27310, 27472, 28129
OFFSET
1,1
EXAMPLE
2293 = 33133_5 = 14341_6.
3074 = 44244_5 = 22122_6.
PROG
(PARI) isok(m) = {my(nb = 0); for (b=2, m-1, my(d=digits(m, b)); if ((#d == 5) && (Vecrev(d) == d), nb++); if (nb == 2, return (1)); ); } \\ Michel Marcus, Feb 13 2021
CROSSREFS
Cf. A180453.
Sequence in context: A251302 A198146 A020404 * A216899 A023323 A163513
KEYWORD
nonn,base
AUTHOR
John L. Drost, Sep 05 2010
STATUS
approved