A120276 Prime numbers p such that p divides the sum of squares of Catalan numbers A094639(p).

2, 19, 29, 67

Offset

1,1

Comments

Next term is bigger than 2000. - Stefan Steinerberger, Jul 21 2006

Links

Table of n, a(n) for n=1..4.

Mathematica

Select[Prime[Range[303]], IntegerQ[Sum[(Binomial[2n, n]/(n + 1))^2, {n, 0, #}]/# ] &] (* Stefan Steinerberger, Jul 21 2006 *)

Crossrefs

Cf. A094639.

Sequence in context: A365235 A290163 A284496 * A006962 A261312 A090819

Adjacent sequences: A120273 A120274 A120275 * A120277 A120278 A120279

Keyword

nonn

Author

Alexander Adamchuk, Jul 04 2006

Status

approved