%I A053429
%S A053429 0,1,2,5,11,25,69,86,90,95,104,145,203,215,227,291,309,322,337,407,480,
%T A053429 792,823,919,1001,1159,2226,2743,2822,4250
%N A053429 Numbers n such that Catalan[n]+1 is prime.
%C A053429 Primality up to Catalan[4250]+1 proved by PrimeForm.
%e A053429 Catalan[25]+1=50!/25!/26!+1=4861946401453 is prime.
%Y A053429 Cf. A000108, A053427.
%Y A053429 Sequence in context: A047775 A001432 A127075 this_sequence A104237 A085945 
               A005469
%Y A053429 Adjacent sequences: A053426 A053427 A053428 this_sequence A053430 A053431 
               A053432
%K A053429 nonn
%O A053429 1,3
%A A053429 David Broadhurst (D.Broadhurst(AT)open.ac.uk), Jan 10 2000