Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = x + 4.
A257606
Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = x + 4.
Terms
- a(0) =1a(1) =4a(2) =4a(3) =16a(4) =40a(5) =16a(6) =64a(7) =296a(8) =296a(9) =64a(10) =256a(11) =1928a(12) =3552a(13) =1928a(14) =256a(15) =1024a(16) =11688a(17) =34808a(18) =34808a(19) =11688a(20) =1024a(21) =4096a(22) =67656a(23) =302352a(24) =487312a(25) =302352a(26) =67656a(27) =4096a(28) =16384a(29) =379240
External references
- oeis: A257606