1,2
3,4,5; number 4 is not in this sequence
5,12,13; number 12 is not in this sequence
8,15,17; number 15 is not in this sequence
Cf. A002088, A137409.
Adjacent sequences: A137404 A137405 A137406 this_sequence A137408 A137409 A137410
Sequence in context: A119605 A144146 A090240 this_sequence A074137 A039222 A029927
nonn
Vladimir Orlovsky (4vladimir(AT)gmail.com), Apr 14 2008
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