OFFSET
1,46
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..1275
FORMULA
EXAMPLE
n/k | 1 2 3 4 5 6 7 8 9 10
1: 0
2: 0 0
3: 1 1 0
4: 1 0 1 0
5: 1 1 1 1 0
6: 1 1 0 1 1 0
7: 1 1 1 1 1 1 0
8: 1 1 1 0 1 1 1 0
9: 1 1 1 1 1 1 1 1 0
10: 2 2 2 2 0 1 1 1 1 0
PROG
(PARI) T(n, k) = {my(m=n-k); if(m>0, polcoef(prod(j=1, m, 1+x^j + O(x*x^m))/(1+x^k) - prod(j=1, m, 1-x^j + O(x*x^m))/(1-x^k), m)/2, 0)} \\ Andrew Howroyd, Apr 29 2020
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Mircea Merca, Feb 26 2014
STATUS
approved