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) ) } \\ Harry J. Smith, Sep 28 2009
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 25 2001
STATUS
approved