Triangle T(n,k), for n >= 1, 1 <= k <= n, read by rows, giving coefficient of x^n in expansion of (Product_{j>=1} (1-(-x)^j) - 1 )^k.
A047265
Triangle T(n,k), for n >= 1, 1 <= k <= n, read by rows, giving coefficient of x^n in expansion of (Product_{j>=1} (1-(-x)^j) - 1 )^k.
Terms
- a(0) =1a(1) =-1a(2) =1a(3) =0a(4) =-2a(5) =1a(6) =0a(7) =1a(8) =-3a(9) =1a(10) =-1a(11) =0a(12) =3a(13) =-4a(14) =1a(15) =0a(16) =-2a(17) =-1a(18) =6a(19) =-5a(20) =1a(21) =-1a(22) =2a(23) =-3a(24) =-4a(25) =10a(26) =-6a(27) =1a(28) =0a(29) =-2
External references
- oeis: A047265