Triangle T(n, k, m) = t(n,m)/( t(k,m) * t(n-k,m) ) with T(n, 0, m) = T(n, n, m) = 1, where t(n, m) = Product_{j=1..n} Product_{i=1..j-1} ( 1 - (m+1)*(3*i-2) ) and m = 1, read by rows.
A156722
Triangle T(n, k, m) = t(n,m)/( t(k,m) * t(n-k,m) ) with T(n, 0, m) = T(n, n, m) = 1, where t(n, m) = Product_{j=1..n} Product_{i=1..j-1} ( 1 - (m+1)*(3*i-2) ) and m = 1, read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =-1a(5) =1a(6) =1a(7) =7a(8) =7a(9) =1a(10) =1a(11) =-91a(12) =637a(13) =-91a(14) =1a(15) =1a(16) =1729a(17) =157339a(18) =157339a(19) =1729a(20) =1a(21) =1a(22) =-43225a(23) =74736025a(24) =-971568325a(25) =74736025a(26) =-43225a(27) =1a(28) =1a(29) =1339975
External references
- oeis: A156722