OFFSET
0,2
FORMULA
Let M = an infinite lower triangular matrix with (1, 9, 9, 9,...) in each column but stepped down twice from the previous column for (k>0). Then A176201 = Lim_{n->inf.} M^n, the left-shifted vector considered as a sequence.
PROG
(PARI) lista(n)= {local(A=1+9*x); for (i=1, n, A = subst(A, x, x^2)*(9*(1-x^i)/(1-x) - 8); A = subst(A, x, x+O(x^i)); print1(polcoeff(A, i-1), ", "); ); } \\ Michel Marcus, Jul 15 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
Gary W. Adamson, Apr 11 2010
EXTENSIONS
Corrected and more terms from Michel Marcus, Jul 19 2013
STATUS
approved