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 + 6*x^5 + 7*x^6 + 8*x^7) * (1 + A(x^9)).
MATHEMATICA
Table[Times @@ IntegerDigits[n, 9], {n, 0, 100}]
PROG
(Magma) [0] cat [&*Intseq(n, 9):n in [1..100]]; // Marius A. Burtea, Aug 26 2019
CROSSREFS
KEYWORD
AUTHOR
Ilya Gutkovskiy, Aug 26 2019
STATUS
approved