

A309957


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


5



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

(Magma) [0] cat [&*Intseq(n, 6):n in [1..100]]; // Marius A. Burtea, Aug 25 2019


CROSSREFS

Cf. A007092, A007954, A053827.
Sequence in context: A010875 A260187 A257687 * A220660 A257846 A203572
Adjacent sequences: A309954 A309955 A309956 * A309958 A309959 A309960


KEYWORD

nonn,base


AUTHOR

Ilya Gutkovskiy, Aug 24 2019


STATUS

approved



