OFFSET
1,1
FORMULA
Logarithmic derivative of A262011.
EXAMPLE
L.g.f.: L(x) = 2*x + 14*x^2/2 + 206*x^3/3 + 4754*x^4/4 + 156722*x^5/5 + 7002926*x^6/6 +...
where
exp(L(x)) = 1 + 2*x + 9*x^2 + 84*x^3 + 1365*x^4 + 34398*x^5 + 1244061*x^6 +...+ A262011(n)*x^n +...
PROG
(PARI) {a(n) = n*polcoeff( log(sum(m=0, n+1, x^m/m!*prod(k=1, m, k^4+1)) +x*O(x^n)), n)}
for(n=1, 30, print1(a(n), ", "))
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Sep 08 2015
STATUS
approved