a(n) = [x^n] Product_{k=1..n} (1 - x^k)^(n^k).

A300457

a(n) = [x^n] Product_{k=1..n} (1 - x^k)^(n^k).

Terms

    a(0) =1a(1) =-1a(2) =-3a(3) =-1a(4) =25a(5) =624a(6) =9871a(7) =170470a(8) =3027249a(9) =55077245a(10) =979330606a(11) =15079702923a(12) =94670678245

External references