1,1
Cf. A139253, A161412, A161423.
Sequence in context: A038932 A019377 A040107 this_sequence A079376 A072532 A038705
Adjacent sequences: A161411 A161412 A161413 this_sequence A161415 A161416 A161417
more,nonn
Omar E. Pol (info(AT)polprimos.com), Jun 10 2009
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