Triangular array: the fusion of polynomial sequences P and Q given by p(n,x)=(x+2)^n and q(n,x)=(x+2)^n.

A193726

Triangular array: the fusion of polynomial sequences P and Q given by p(n,x)=(x+2)^n and q(n,x)=(x+2)^n.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =2a(4) =9a(5) =10a(6) =4a(7) =28a(8) =65a(9) =50a(10) =8a(11) =76a(12) =270a(13) =425a(14) =250a(15) =16a(16) =192a(17) =920a(18) =2200a(19) =2625a(20) =1250a(21) =32a(22) =464a(23) =2800a(24) =9000a(25) =16250a(26) =15625a(27) =6250a(28) =64a(29) =1088

External references