1,1

The next term is > 11000.

Cf. A001700(n-1)=(2*n)!/(2*(n!)^2), A112862 primes of the form (2*n)!/(2*(n!)^2)-1, A112853 (2*n)!/n!-1 is prime, A112855 (2*n)!/n!+1 is prime, A112857 (2*n)!/(n!)^2-1 is prime, A112859 (2*n)!/(n!)^2+1 is prime, A112863 (2*n)!/(2*(n!)^2)+1 is prime.

Sequence in context: A083176 A103628 A034450 this_sequence A140775 A077064 A080715

Adjacent sequences: A112858 A112859 A112860 this_sequence A112862 A112863 A112864

hard,nonn

Hugo Pfoertner (hugo(AT)pfoertner.org), Sep 30 2005