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0, 1, 3, 7, 17, 41, 107, 287, 809, 2341, 6965, 21101, 65031, 202939, 640441, 2039509, 6546861, 21158437, 68791923, 224839127, 738316629, 2434622357, 8058616301, 26765349429, 89173526191, 297942766331, 998072479961, 3351459203873
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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REFERENCES
| Z. A. Lomnicki, Two-terminal series-parallel networks, Adv. Appl. Prob., 4 (1972), 109-150.
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LINKS
| Sameen Ahmed KHAN, Mathematica notebook for A153588 and A058351
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CROSSREFS
| Cf. A000084, A006349, A006350, A058352, A058353, A000669.
Sequence in context: A089742 A187258 A131721 * A175094 A086395 A020730
Adjacent sequences: A058348 A058349 A058350 * A058352 A058353 A058354
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Dec 16 2000
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