a(n) = [x^(n^3)] Product_{k=1..n} Sum_{m>=0} x^(k*m^2).
A321238
a(n) = [x^(n^3)] Product_{k=1..n} Sum_{m>=0} x^(k*m^2).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =16a(5) =87a(6) =911a(7) =8081a(8) =82494a(9) =1108584a(10) =14559487a(11) =206462480a(12) =3300362073a(13) =54235076625a(14) =939612600043
External references
- oeis: A321238