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 A270295 Numbers that equal the sum of the squares of the digits of their own square in base 27. 3
 0, 1, 9, 81, 488, 507, 827, 1210, 1534, 1912 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS in other bases: base 16:0, 1, 33, 358 base 17:0, 1, 105, 311 base 18:0, 1 base 19:0, 1, 396 base 20:0, 1, 35 base 21:0, 1, 175, 202 base 22:0, 1, 111 base 23:0, 1, 5, 237, 912 base 24:0, 1, 362, 675, 916 base 25:0, 1, 45, 200, 1072 base 26:0, 1, 1318 LINKS MATHEMATICA Select[Range[0, 2000], # == Total[IntegerDigits[#^2, 27]^2] &] (* Michael De Vlieger, Mar 15 2016 *) PROG (PARI) isok(n, b=27) = my(d = digits(n^2, b)); sum(k=1, #d, d[k]^2) == n; \\ Michel Marcus, Mar 16 2016 CROSSREFS Cf. A270304, A270340, A270341. Sequence in context: A167717 A208079 A223719 * A214618 A343462 A207009 Adjacent sequences: A270292 A270293 A270294 * A270296 A270297 A270298 KEYWORD nonn,fini,base AUTHOR Daniel Mondot, Mar 14 2016 STATUS approved

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Last modified January 30 19:55 EST 2023. Contains 359947 sequences. (Running on oeis4.)