A317777 - OEIS

A317777

Numbers whose digital sums in bases 2, 3, 4, and 5 are all equal.

1, 23162843828305, 5722224662500629, 25185954575304707081301, 407805072367801818857674005, 1705412607407578552438012746487125, 1705412607426764386750185803694405, 1705412607426764386750185803695125, 1705412607426764386750186877112645, 1705412607431411795338502226662661

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OFFSET

1,2

LINKS

Max Alekseyev, Table of n, a(n) for n = 1..28

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

Subsequence of A037301 and A135122.

Cf. A317725.

Sequence in context: A015438 A082249 A125735 * A017544 A221560 A221562

Adjacent sequences: A317774 A317775 A317776 * A317778 A317779 A317780

KEYWORD

nonn,base,hard

AUTHOR

Giovanni Resta, Aug 06 2018

EXTENSIONS

Terms a(5) onward from Max Alekseyev, Sep 09 2023

STATUS

approved