login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A061183 One-fourth of fourth (m=3) column of triangle A060921 (bisection of Fibonacci triangle, odd part). 2
1, 10, 64, 331, 1505, 6272, 24540, 91527, 328768, 1145650, 3893630, 12958400, 42364427, 136389128, 433263360, 1360269093, 4226523495, 13011186624, 39722775806, 120366164765, 362255552384, 1083513943700 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Numerator polynomial of g.f. is sum(A061177(3,m)*x^m,m=0..3)/4.

LINKS

Table of n, a(n) for n=0..21.

FORMULA

a(n)= A060921(n+3, 3)/4.

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

CROSSREFS

A061182.

Sequence in context: A036426 A245068 A055855 * A241401 A219934 A155618

Adjacent sequences:  A061180 A061181 A061182 * A061184 A061185 A061186

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang, Apr 20 2001

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 1 15:55 EDT 2020. Contains 337443 sequences. (Running on oeis4.)