a(n) = [x^n] Product_{k>=1} ((1 + x^(2*k))/(1 - x^(2*k-1)))^n.
A296044
a(n) = [x^n] Product_{k>=1} ((1 + x^(2*k))/(1 - x^(2*k-1)))^n.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =22a(4) =101a(5) =481a(6) =2330a(7) =11425a(8) =56549a(9) =281911a(10) =1413465a(11) =7120136a(12) =36006362a(13) =182681916a(14) =929461993a(15) =4740491107a(16) =24229115109a(17) =124069449335a(18) =636376573943
External references
- oeis: A296044