1,1
Cf. A139250, A139251.
Sequence in context: A166517 A051555 A086407 this_sequence A090124 A097943 A077142
Adjacent sequences: A160424 A160425 A160426 this_sequence A160428 A160429 A160430
more,nonn
Omar E. Pol (info(AT)polprimos.com), May 25 2009
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