login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A064836 A064835/2. 1
0, 0, 1, 5, 22, 60, 135, 261, 460, 752, 1165, 1725, 2466, 3420, 4627, 6125, 7960, 10176, 12825, 15957, 19630, 23900, 28831, 34485, 40932, 48240, 56485, 65741, 76090, 87612, 100395, 114525, 130096, 147200, 165937, 186405, 208710, 232956 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

LINKS

Harry J. Smith, Table of n, a(n) for n=0,...,500

PROG

(PARI) { for (n=0, 500, a=n^4/4 - 2*n^2 + 3*n; if (n%2, a-=5/4); write("b064836.txt", n, " ", a/2) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 28 2009]

CROSSREFS

Sequence in context: A049452 A033445 A050533 * A032168 A000345 A011846

Adjacent sequences:  A064833 A064834 A064835 * A064837 A064838 A064839

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Oct 25 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 20:03 EST 2012. Contains 205852 sequences.