1,1

This sequence is different from A070826 and/or A118750

Compute the product of k consecutive sequences of prime factors 3,5,7,11,etc. where k=1,2,3,4,5,etc. Where odd composite N is not followed by prime N+2 add N to the sequence.

a(1)=1155 because 1157 is not prime.

Cf. A136349-A136354 A136356-A136358 A070826 A118750.

Sequence in context: A046390 A088012 A046406 this_sequence A062915 A034979 A031622

Adjacent sequences: A136352 A136353 A136354 this_sequence A136356 A136357 A136358

easy,more,nonn,uned

Enoch Haga (Enokh(AT)comcast.net), Dec 25 2007