1,3

If n=39 then 10*n! + 1 = 203978820811974433586402817399028973568000000001 (prime)

Cf. A076680, A076679.

Sequence in context: A039573 A037347 A116474 this_sequence A123957 A085285 A085841

Adjacent sequences: A126893 A126894 A126895 this_sequence A126897 A126898 A126899

nonn

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), May 07 2007