1,1
Cf. A002144 A002145 A022757.
Sequence in context: A044367 A044748 A136017 this_sequence A048629 A133534 A005339
Adjacent sequences: A048625 A048626 A048627 this_sequence A048629 A048630 A048631
nonn
Den Roussel (DenRoussel(AT)webtv.net)
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