A061185 One half of sixth (m=5) column of triangle A060921 (bisection of Fibonacci triangle, odd part).

3, 49, 462, 3294, 19715, 104517, 506646, 2292310, 9817920, 40210800, 158677370, 606790410, 2258770689, 8214432303, 29269938510, 102434633406, 352793077413, 1197764971911, 4014411070092

Offset

0,1

Comments

Numerator polynomial of g.f. is sum(A061177(5,m)*x^m,m=0..5)/2.

Links

Table of n, a(n) for n=0..18.

Formula

a(n)= A060921(n+5, 5)/2.

G.f.: (3*(1-x^5)-5*(x-x^4)+3*(x^2-x^3))/(1-3*x+x^2)^6.

Crossrefs

A061184.

Sequence in context: A269630 A067788 A167601 * A182279 A203760 A208935

Adjacent sequences: A061182 A061183 A061184 * A061186 A061187 A061188

Keyword

nonn,easy

Author

Wolfdieter Lang, Apr 20 2001

Status

approved