Infinite square array f(a,b) = C(a+b,b+1)*(a*b+a+1)/(b+2), a, b >= 0, read by antidiagonals. Equivalently, triangular array T(n,k) = f(k,n-k), 0 <= k <= n, read by rows.

A034261

Infinite square array f(a,b) = C(a+b,b+1)*(a*b+a+1)/(b+2), a, b >= 0, read by antidiagonals. Equivalently, triangular array T(n,k) = f(k,n-k), 0 <= k <= n, read by rows.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =0a(4) =1a(5) =3a(6) =0a(7) =1a(8) =5a(9) =6a(10) =0a(11) =1a(12) =7a(13) =14a(14) =10a(15) =0a(16) =1a(17) =9a(18) =25a(19) =30a(20) =15a(21) =0a(22) =1a(23) =11a(24) =39a(25) =65a(26) =55a(27) =21a(28) =0a(29) =1

External references