143716domain: NAppears in sequencesExpansion of Product_{k>=1} ((1 + x^(4*k)) / (1 - x^k))^k.at n=21A285460First term of n-th difference sequence of (floor(-k*e)), k >= 0.at n=20A325735First term of n-th difference sequence of (floor(2*Pi*k)), k >= 0.at n=20A325740