Numbers k such that A014138(k+1) (the partial sum of the first k Catalan numbers, starting 1, 2, 5, ...) is a prime.

A126807

Numbers k such that A014138(k+1) (the partial sum of the first k Catalan numbers, starting 1, 2, 5, ...) is a prime.

Terms

    a(0) =1a(1) =8a(2) =10a(3) =30a(4) =45a(5) =145a(6) =794a(7) =2772a(8) =2787a(9) =9796a(10) =38288a(11) =39191a(12) =40856a(13) =41202a(14) =47379

External references