1,2
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Sequence in context: A127450 A059564 A001651 this_sequence A119905 A161750 A067940
Adjacent sequences: A003250 A003251 A003252 this_sequence A003254 A003255 A003256
dead
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