1,1
3 is the only prime missing. p and p+1 where p is a prime.
Sequence in context: A070110 A049095 A101742 this_sequence A104248 A058049 A091871
Adjacent sequences: A111685 A111686 A111687 this_sequence A111689 A111690 A111691
easy,nonn
Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 17 2005
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