A309957 - OEIS

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A309957

Product of digits of (n written in base 6).

0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 2, 4, 6, 8, 10, 0, 3, 6, 9, 12, 15, 0, 4, 8, 12, 16, 20, 0, 5, 10, 15, 20, 25, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 0, 2, 4, 6, 8, 10, 0, 3, 6, 9, 12, 15, 0, 4, 8, 12, 16, 20, 0, 5, 10, 15, 20, 25, 0, 0, 0, 0, 0, 0, 0, 2, 4, 6, 8, 10, 0, 4, 8, 12, 16, 20, 0, 6, 12, 18, 24, 30, 0, 8, 16, 24, 32

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OFFSET

0,3

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..10000

FORMULA

G.f. A(x) satisfies: A(x) = x * (1 + 2*x + 3*x^2 + 4*x^3 + 5*x^4) * (1 + A(x^6)).

MAPLE

seq(convert(convert(n, base, 6), `*`), n=0..100); # Robert Israel, Aug 24 2019

MATHEMATICA

Table[Times @@ IntegerDigits[n, 6], {n, 0, 100}]

PROG