1,3

5 is in the sequence because 5!!+2^5=47 is prime.

Cf. A124249.

Sequence in context: A057743 A071169 A163979 this_sequence A029514 A061950 A166093

Adjacent sequences: A124245 A124246 A124247 this_sequence A124249 A124250 A124251

more,nonn

Farideh Firoozbakht (mymontain(AT)yahoo.com), Nov 27 2006, corrected Nov 28 2006