1,1

Next term (2*72)!/72!+1 has 146 decimal digits.

Cf. A112855 n such that (2*n)!/n!+1 is prime, A112854 primes of the form (2*n)!/n!-1.

Sequence in context: A127855 A087333 A016104 this_sequence A007523 A092830 A105291

Adjacent sequences: A112853 A112854 A112855 this_sequence A112857 A112858 A112859

nonn

Hugo Pfoertner (hugo(AT)pfoertner.org), Sep 25 2005