Array of coefficients a(k,n) of the formal power series A(k,x) read by upwards antidiagonals, where A(k,x) = ((2*k+1)*x+sqrt(1+4*k*(k+1)*x^2))/(1-x^2), k>=0.

A277930

Array of coefficients a(k,n) of the formal power series A(k,x) read by upwards antidiagonals, where A(k,x) = ((2*k+1)*x+sqrt(1+4*k*(k+1)*x^2))/(1-x^2), k>=0.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =5a(8) =5a(9) =1a(10) =1a(11) =7a(12) =13a(13) =3a(14) =1a(15) =1a(16) =9a(17) =25a(18) =5a(19) =-3a(20) =1a(21) =1a(22) =11a(23) =41a(24) =7a(25) =-59a(26) =3a(27) =1a(28) =1a(29) =13

External references