1,1

Next term (2*114)!/114!-1 has 254 decimal digits.

A112853 gives n such that (2*n)!/n!-1 is prime, A112856 gives primes of the form (2*n)!/n!+1.

Sequence in context: A099115 A076171 A090102 this_sequence A014127 A049192 A156670

Adjacent sequences: A112851 A112852 A112853 this_sequence A112855 A112856 A112857

nonn

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