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 A317777 Numbers whose digital sums in bases 2, 3, 4, and 5 are all equal. 1
 1, 23162843828305, 5722224662500629, 25185954575304707081301 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(5) > 7.73*10^25, if it exists. LINKS EXAMPLE 23162843828305 in base 2, 3, 4, and 5 is equal to: 101010001000100000101000101000001000001010001, 10001000100100102010101011001, 11101010011011001001101, and 11014000001010001210, respectively. The sum of the digits is 13 in the 4 cases. CROSSREFS Cf. A037301, A135122, A317725. Sequence in context: A015438 A082249 A125735 * A017544 A221560 A221562 Adjacent sequences:  A317774 A317775 A317776 * A317778 A317779 A317780 KEYWORD nonn,base,hard,more AUTHOR Giovanni Resta, Aug 06 2018 STATUS approved

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Last modified May 20 12:33 EDT 2019. Contains 323422 sequences. (Running on oeis4.)