Triangle T(n, k, q) = e(n, k, q), where e(n, k, q) = ((1 - (-q)^(n+k-1))/(1 + q))*e(n-1, k, q) + (-q)^(n+k-2)*e(n-1, k-1, q), e(n, 0, q) = e(n, n, q) = 1, and q = 2, read by rows.
A156539
Triangle T(n, k, q) = e(n, k, q), where e(n, k, q) = ((1 - (-q)^(n+k-1))/(1 + q))*e(n-1, k, q) + (-q)^(n+k-2)*e(n-1, k-1, q), e(n, 0, q) = e(n, n, q) = 1, and q = 2, read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =-13a(5) =1a(6) =1a(7) =-127a(8) =395a(9) =1a(10) =1a(11) =2635a(12) =8857a(13) =-50645a(14) =1a(15) =1a(16) =113369a(17) =-1090125a(18) =-6392903a(19) =25929899a(20) =1a(21) =1a(22) =-9636493a(23) =-157388911a(24) =2738123923a(25) =11163788345a(26) =-53104434517a(27) =1a(28) =1a(29) =-1647840047
External references
- oeis: A156539