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A000084
Number of series-parallel networks with n unlabeled edges. Also called yoke-chains by Cayley and MacMahon.
(Formerly M1207 N0466)
+0
27
1, 2, 4, 10, 24, 66, 180, 522, 1532, 4624, 14136, 43930, 137908, 437502, 1399068, 4507352, 14611576, 47633486, 156047204, 513477502, 1696305728, 5623993944, 18706733128, 62408176762, 208769240140, 700129713630, 2353386723912
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Maintained by
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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.
AT&T Labs Research
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