OFFSET
0,2
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..10000
For the third power see G. E. Andrews, Simplicity and surprise in Ramanujan's "Lost" Notebook, Amer. Math. Monthly, 104 (No. 10, Dec. 1997), 918-925.
FORMULA
a(0) = 1, a(n) = -(4/n)*Sum_{k=1..n} A109091(k)*a(n-k) for n > 0. - Seiichi Manyama, Apr 16 2017
CROSSREFS
KEYWORD
sign,easy
AUTHOR
N. J. A. Sloane, Jun 14 2000
EXTENSIONS
More terms from Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), Jun 20 2000
STATUS
approved