Triangular array: the fission of ((x+2)^n) by (q(n,x)) given by q(n,x)=x^n+x^(n-1)+...+x+1.

Terms

a(0) =2a(1) =4a(2) =8a(3) =8a(4) =20a(5) =26a(6) =16a(7) =48a(8) =72a(9) =80a(10) =32a(11) =112a(12) =192a(13) =232a(14) =242a(15) =64a(16) =256a(17) =496a(18) =656a(19) =716a(20) =728a(21) =128a(22) =576a(23) =1248a(24) =1808a(25) =2088a(26) =2172a(27) =2186a(28) =256a(29) =1280