OFFSET
0,2
FORMULA
a(n) = Sum_{k=0..n} A007559(k+1) * |Stirling1(n,k)|.
MATHEMATICA
nmax=17; CoefficientList[Series[1 / (1 + 3 * Log[1-x])^(4/3), {x, 0, nmax}], x]*Range[0, nmax]! (* Stefano Spezia, Sep 03 2024 *)
PROG
(PARI) a007559(n) = prod(k=0, n-1, 3*k+1);
a(n) = sum(k=0, n, a007559(k+1)*abs(stirling(n, k, 1)));
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Sep 03 2024
STATUS
approved