%I #9 Sep 15 2012 11:50:36

%S 1,3,25,245,32065,400023,68635477,930138521,178987624513,

%T 518401146543811,7506908923471953,23596358977508462295,

%U 5180299766448679532059,77180849825857621779893

%N (C(2p,p)-2)/(2p) where p runs through the primes.

%F a(n) = A022553(prime(n)).

%K nonn

%O 1,2

%A _Benoit Cloitre_, Sep 11 2003

%E Typo in definition corrected by Vladimir Shevelev, Sep 05 2010