Triangle, read by rows, each row n being defined by g.f. Product_{k=1..n} (k + x + k*x^2), for n >= 0.
A322235
Triangle, read by rows, each row n being defined by g.f. Product_{k=1..n} (k + x + k*x^2), for n >= 0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =3a(6) =5a(7) =3a(8) =2a(9) =6a(10) =11a(11) =24a(12) =23a(13) =24a(14) =11a(15) =6a(16) =24a(17) =50a(18) =131a(19) =160a(20) =215a(21) =160a(22) =131a(23) =50a(24) =24a(25) =120a(26) =274a(27) =825a(28) =1181a(29) =1890
External references
- oeis: A322235