Convolution of A007054 (super ballot numbers) with A000984 (central binomial coefficients).
A038665
Convolution of A007054 (super ballot numbers) with A000984 (central binomial coefficients).
Terms
- a(0) =3a(1) =8a(2) =25a(3) =84a(4) =294a(5) =1056a(6) =3861a(7) =14300a(8) =53482a(9) =201552a(10) =764218a(11) =2912168a(12) =11143500a(13) =42791040a(14) =164812365a(15) =636438060a(16) =2463251010a(17) =9552774000a(18) =37112526990a(19) =144410649240a(20) =562724141460
External references
- oeis: A038665