OFFSET
0,2
COMMENTS
Logarithmic derivative equals A262003.
FORMULA
a(n) = (n+1) * Product_{k=1..n} (k^2 - k + 1).
a(n) = (n+1) * A130032(n).
MATHEMATICA
Table[1/n! Product[k^3+1, {k, n}], {n, 0, 20}] (* Harvey P. Dale, Jul 19 2019 *)
PROG
(PARI) {a(n)=prod(k=1, n, (k^3+1))/n!}
for(n=0, 30, print1(a(n), ", "))
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Sep 08 2015
STATUS
approved