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A052452 Number of n-node simple graphs having clique number 4. 10
0, 0, 0, 1, 4, 30, 301, 4985, 142276, 7269487, 655015612, 103031645470, 28250197044039 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,5
COMMENTS
Also, number of n-node simple graphs having independence number 4. - Andrew Howroyd, Oct 31 2017
LINKS
Table of n, a(n) for n=1..13.
Keith M. Briggs, Combinatorial Graph Theory
Eric Weisstein's World of Mathematics, Clique Number
CROSSREFS
Column 4 of A263341.
Cf. A052450, A052451, A052453, A077392, A077393, A077394.
Sequence in context: A347994 A240958 A054972 * A348708 A307905 A292629
Adjacent sequences: A052449 A052450 A052451 * A052453 A052454 A052455
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein
EXTENSIONS
2 more terms from Eric W. Weisstein, Nov 03 2002
a(10) from Keith Briggs, Mar 15 2006
a(11) from Michael Sollami, Jan 29 2012
a(12) from Michael Sollami, Mar 26 2012
a(13) from Brendan McKay, May 07 2018
STATUS
approved

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Last modified May 20 19:00 EDT 2024. Contains 372720 sequences. (Running on oeis4.)