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A054951
Number of unlabeled semi-strong digraphs on n nodes with mutually nonisomorphic components.
+0
1
1, 1, 4, 78, 4960, 1041872, 704369984, 1579641879248, 12137443766888448, 328148810741254606592, 31830752699315833628787200
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.
AT&T Labs Research
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