Triangle read by rows: numerators of the almost-Riordan array ( (3*x - 2 - 2*sqrt(1 - x))/(-x^2 + 5*x - 2 + 2*(x - 1)*sqrt(1 - x)) | 4/(2*(1 - x)*sqrt(1 - x) + x^2 - 5*x + 2), (8 - 4*x - 8*sqrt(1 - x))/x ).
A389710
Triangle read by rows: numerators of the almost-Riordan array ( (3*x - 2 - 2*sqrt(1 - x))/(-x^2 + 5*x - 2 + 2*(x - 1)*sqrt(1 - x)) | 4/(2*(1 - x)*sqrt(1 - x) + x^2 - 5*x + 2), (8 - 4*x - 8*sqrt(1 - x))/x ).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =2a(5) =1a(6) =5a(7) =57a(8) =5a(9) =1a(10) =137a(11) =199a(12) =39a(13) =3a(14) =1a(15) =473a(16) =1383a(17) =283a(18) =103a(19) =7a(20) =1a(21) =3275a(22) =9599a(23) =4001a(24) =393a(25) =33a(26) =4a(27) =1a(28) =22699a(29) =133193
External references
- oeis: A389710