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A243241
Number of connected simple graphs on n nodes that are not strongly regular.
0
0, 0, 1, 4, 19, 109, 852, 11114, 261077, 11716566
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OFFSET
1,4
LINKS
Table of n, a(n) for n=1..10.
Travis Hoppe and Anna Petrone,
Encyclopedia of Finite Graphs
Eric Weisstein's World of Mathematics,
Strongly Regular Graph
FORMULA
a(n) =
A001349
(n) -
A088741
(n).
CROSSREFS
Sequence in context:
A199318
A117397
A004212
*
A060905
A304473
A174123
Adjacent sequences:
A243238
A243239
A243240
*
A243242
A243243
A243244
KEYWORD
nonn
,
more
AUTHOR
Travis Hoppe
and
Anna Petrone
, Jun 01 2014
STATUS
approved
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Last modified July 19 06:32 EDT 2024. Contains 374389 sequences. (Running on oeis4.)