1,1
Cf. 153001, A147646, A160121.
Sequence in context: A008847 A143243 A157812 this_sequence A111171 A067887 A141603
Adjacent sequences: A161323 A161324 A161325 this_sequence A161327 A161328 A161329
more,nonn
Omar E. Pol (info(AT)polprimos.com), Jun 18 2009
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