A115192 Sixth diagonal (M=6) of triangle A115154 (called Y(3,1)).

1, 1093, 22417, 333244, 4380151, 54231244, 649940212, 7643456248, 88872211096, 1026178892443, 11798983030675, 135327222190240, 1550024200441495, 17743256268685240, 203091320580519760, 2325213813771735940

Offset

0,2

Links

Table of n, a(n) for n=0..15.

Formula

a(n)= A115154(n+5,n+1), n>=0.

G.f.: ((-3+36*x-81*x^2+ 2*x^5) + 3*(1-15*x+54*x^2-27*x^3)*c(3*x))/((2+x)*x^5), with the o.g.f. c(x) of A000108 (Catalan).

Crossrefs

Sequence in context: A273471 A266829 A203858 * A307220 A091674 A022197

Adjacent sequences: A115189 A115190 A115191 * A115193 A115194 A115195

Keyword

nonn,easy

Author

Wolfdieter Lang, Feb 23 2006

Status

approved