A173868 - OEIS

A173868

Smallest primes > Catalan numbers.

2, 3, 7, 17, 43, 137, 431, 1433, 4871, 16811, 58787, 208037, 742909, 2674453, 9694849, 35357711, 129644831, 477638741, 1767263209, 6564120463, 24466267027, 91482563651, 343059613667, 1289904147349, 4861946401453, 18367353072191

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..26.

MATHEMATICA

PrimeNext[n_]:=Module[{k=n+1}, While[ !PrimeQ[k], k++ ]; k]; f[n_]:=(2n)!/n!/(n+1)!; Table[PrimeNext[f[n]], {n, 40}]

CROSSREFS

Cf. A000108, A173867

Sequence in context: A257553 A143013 A113483 * A274291 A358456 A208987

Adjacent sequences: A173865 A173866 A173867 * A173869 A173870 A173871

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Feb 28 2010

STATUS

approved