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A035350
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"BIK" (reversible, indistinct, unlabeled) transform of A000237.
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3
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1, 1, 2, 5, 15, 48, 164, 583, 2142, 8062, 30950, 120651, 476418, 1901311, 7656763, 31074151, 126963466, 521820340, 2155911512, 8948711597, 37299355151, 156054201936, 655134261795, 2758885471920, 11651193009013
(list; graph; refs; listen; history; internal format)
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