A triangle sequence from polynomial coefficients: p(x, n) = (4*(n - 1) + (4(n - 1))*x^2)*p(x, n - 1) + 2*(n - 1)x^2*p(x, n - 2).
A156817
A triangle sequence from polynomial coefficients: p(x, n) = (4*(n - 1) + (4(n - 1))*x^2)*p(x, n - 1) + 2*(n - 1)x^2*p(x, n - 2).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =4a(5) =8a(6) =10a(7) =8a(8) =4a(9) =32a(10) =64a(11) =116a(12) =136a(13) =116a(14) =64a(15) =32a(16) =384a(17) =768a(18) =1800a(19) =2448a(20) =2844a(21) =2448a(22) =1800a(23) =768a(24) =384a(25) =6144a(26) =12288a(27) =35200a(28) =51968a(29) =75232
External references
- oeis: A156817