101591domain: NAppears in sequencesExpansion of Product_{k>=1} (1 - x^k)^(-k^2).at n=13A023871Numbers M(n) which are the number of terms in the sums of consecutive cubed integers equaling a squared integer, b^3 + (b+1)^3 + ... + (b+M-1)^3 = c^2, for a first term b(n) being an odd squared integer (A016754).at n=22A253707