A212276 Prime generalized Catalan numbers.

2, 17, 37, 15101701

Offset: 1

Author

Jonathan Vos Post, May 13 2012

Keywords

• nonn

Comments

A004148(n) for n = 3, 6, 7, 22, no more through 70. Note that Koshy and Salmassi give an elementary proof that the only prime Catalan numbers A000108 are a(2) = 2 and a(3) = 5.

The next term, if it exists, has more than 2000 digits. - Charles R Greathouse IV, May 13 2012

Crossrefs

Cf. A000040, A000108, A004148, A092840.

Formula

A004148 INTERSECTION A000040.