0,2
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
Cf. A054387.
Sequence in context: A069060 A163783 A103526 this_sequence A110255 A016552 A141578
Adjacent sequences: A054385 A054386 A054387 this_sequence A054389 A054390 A054391
nonn
Eric Weisstein (eric(AT)weisstein.com)
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