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A263915 Number of (not necessarily connected) simple bridged graphs with n nodes. 4
0, 1, 2, 6, 18, 79, 462, 4344, 69130, 1994511, 106159534, 10456891547, 1904341902688, 641869332391172, 401549418479234409, 467956969039256753054, 1019786043659665470506946, 4171198012616858743636651785, 32134630668466555232483869886654 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, Bridged Graph
Eric Weisstein's World of Mathematics, Simple Graph
FORMULA
a(n) = A000088(n) - A263914(n).
CROSSREFS
Cf. A000088 (number of simple graphs).
Cf. A007146 (number of simple connected bridgeless graphs).
Cf. A052446 (number of simple connected bridged graphs).
Cf. A263914 (number of simple bridgeless graph).
Sequence in context: A266858 A141580 A007869 * A360516 A144557 A327729
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Oct 29 2015
EXTENSIONS
More terms using formula by Falk Hüffner, Jan 18 2016
STATUS
approved

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Last modified March 29 11:14 EDT 2024. Contains 371278 sequences. (Running on oeis4.)