1,2

For n > 1 a(n) is even number.

66 is in the sequence because 1.2.3...65.66 + prime(66) is prime.

Sequence in context: A029690 A067737 A111494 this_sequence A156812 A049103 A074172

Adjacent sequences: A092022 A092023 A092024 this_sequence A092026 A092027 A092028

more,nonn

Farideh Firoozbakht (mymontain(AT)yahoo.com), Feb 19 2004