OFFSET
0,2
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..3000
FORMULA
a(0) = 1 and a(n) = -(1/n) * Sum_{k=1..n} 2^(k-1) * A054785(k) * a(n-k) for n > 0.
PROG
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Apr 21 2018
STATUS
approved