OFFSET
1,2
LINKS
Paul D. Hanna, Table of n, a(n) for n = 1..200
FORMULA
a(n) ~ 2^(2*n-1) / sqrt(Pi*n). - Vaclav Kotesovec, Jul 10 2018
PROG
(PARI) {a(n) = polcoeff( sum(m=1, 2*n-1, (x^-m + x^m)^m + O(x^(2*n))), 2*n-1, x)}
for(n=1, 40, print1(a(n), ", "))
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Jul 08 2018
STATUS
approved