A061181 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A061181

Sixth column (m=5) of triangle A060920 (bisection of Fibonacci triangle, even part).

1

1, 27, 315, 2534, 16407, 91959, 464723, 2171850, 9546570, 39940460, 160437690, 622844730, 2348773525, 8638447293, 31086197469, 109744786482, 380920122009, 1302304276665, 4392297900647

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

COMMENTS

Numerator polynomial of g.f. is sum(A061176(6,m)*x^m,m=0..6).

LINKS

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

FORMULA

a(n)= A060920(n+5, 5).

G.f.: ((1+x^6)+9*(x+x^5)-30*(x^2+x^4)+41*x^3)/(1-3*x+x^2)^6.

CROSSREFS

Sequence in context: A125415 A119295 A048396 * A231911 A182130 A224311

Adjacent sequences: A061178 A061179 A061180 * A061182 A061183 A061184

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang, Apr 20 2001

STATUS

approved