Convolution of Catalan numbers A000108(n+1), n >= 0, with A038846.
A042940
Convolution of Catalan numbers A000108(n+1), n >= 0, with A038846.
Terms
- a(0) =1a(1) =18a(2) =197a(3) =1694a(4) =12586a(5) =84708a(6) =530733a(7) =3149542a(8) =17910398a(9) =98409532a(10) =525628194a(11) =2741723180a(12) =14015785460a(13) =70417793992a(14) =348499310973
External references
- oeis: A042940