A334575 a(n) = binomial(C(n+1),C(n)) where C(n) = A000108(n) the n-th Catalan number.

1, 2, 10, 2002, 52860229080, 53570336911983273963270306331114400

Offset

0,2

Links

Table of n, a(n) for n=0..5.

Crossrefs

Cf. A000108, A058077, A066526, A080911.

Sequence in context: A215650 A057015 A059732 * A000884 A328157 A013557

Adjacent sequences: A334572 A334573 A334574 * A334576 A334577 A334578

Keyword

nonn

Author

Henry Cryns, May 06 2020

Status

approved