login
This site is supported by donations to The OEIS 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; internal format)
OFFSET

0,2

COMMENTS

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

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: A178256 A036426 A055855 * A155618 A199487 A144041

Adjacent sequences:  A061180 A061181 A061182 * A061184 A061185 A061186

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Apr 20 2001

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 12:25 EST 2012. Contains 205786 sequences.