Triangle of coefficients T(n,k) of y^k in Product_{k=0..n-1} (1 + (k+2)*y + y^2), read by rows of terms k = 0..2*n, for n >= 0.

A324960

Triangle of coefficients T(n,k) of y^k in Product_{k=0..n-1} (1 + (k+2)*y + y^2), read by rows of terms k = 0..2*n, for n >= 0.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =1a(4) =1a(5) =5a(6) =8a(7) =5a(8) =1a(9) =1a(10) =9a(11) =29a(12) =42a(13) =29a(14) =9a(15) =1a(16) =1a(17) =14a(18) =75a(19) =196a(20) =268a(21) =196a(22) =75a(23) =14a(24) =1a(25) =1a(26) =20a(27) =160a(28) =660a(29) =1519

External references