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!)
A025083 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Fibonacci numbers), t = (odd natural numbers). 0
3, 5, 12, 16, 34, 42, 77, 91, 160, 184, 312, 352, 587, 653, 1076, 1184, 1938, 2114, 3445, 3731, 6064, 6528, 10592, 11344, 18387, 19605, 31756, 33728, 54610, 57802, 93565, 98731, 159792, 168152, 272120, 285648, 462235, 484125, 783380, 818800, 1324898, 1382210 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

FORMULA

G.f.: x*(3-x-x^2-x^3+x^4-3*x^5)/ ((x-1)^2 * (x^4+x^2-1)^2) [From Maksym Voznyy (voznyy(AT)mail.ru), Jul 27 2009]

CROSSREFS

Sequence in context: A057587 A213036 A032438 * A203150 A237351 A299490

Adjacent sequences:  A025080 A025081 A025082 * A025084 A025085 A025086

KEYWORD

nonn

AUTHOR

Clark Kimberling

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 August 2 02:53 EDT 2021. Contains 346409 sequences. (Running on oeis4.)