OFFSET
0,2
FORMULA
EXAMPLE
PROG
(PARI) {a(n)=polcoeff(sum(k=0, n, binomial(4*k, k)*x^k +x*O(x^n))^(1/2), n)}
for(n=0, 41, print1(a(n), ", "))
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Mar 03 2012
STATUS
approved