Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 1/sqrt(1 - 2*x + (1+4*k)*x^2).

A307860

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 1/sqrt(1 - 2*x + (1+4*k)*x^2).

Terms

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

External references