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A287482 Number of disconnected simple non-chordal graphs on n vertices. 2
0, 0, 0, 0, 1, 8, 70, 724, 10975, 271378, 12152603, 1029799448, 166102803505, 50667847301581 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Table of n, a(n) for n=1..14.

Eric Weisstein's World of Mathematics, Chordal Graph

FORMULA

a(n) = A287481(n) - A241843(n).

CROSSREFS

Cf. A287481 (not-necessarily connected non-chordal graphs).

Cf. A241843 (connected non-chordal graphs).

Sequence in context: A142986 A123511 A322416 * A053729 A266433 A267244

Adjacent sequences:  A287479 A287480 A287481 * A287483 A287484 A287485

KEYWORD

nonn,more

AUTHOR

Eric W. Weisstein, May 25 2017

EXTENSIONS

a(11)-a(14) using formula by Falk Hüffner, Aug 10 2017

STATUS

approved

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Last modified August 10 22:22 EDT 2020. Contains 336403 sequences. (Running on oeis4.)