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A243564 Number of simple connected graphs with n nodes that are integral and have no subgraph isomorphic to diamond graph. 0
1, 1, 1, 1, 1, 4, 3, 3, 2, 18 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Table of n, a(n) for n=1..10.

Travis Hoppe and Anna Petrone, Encyclopedia of Finite Graphs

CROSSREFS

Cf. A242790 (diamond free graphs), A064731 (integral graphs).

Sequence in context: A016502 A305743 A117691 * A171627 A239884 A143487

Adjacent sequences:  A243561 A243562 A243563 * A243565 A243566 A243567

KEYWORD

nonn,more

AUTHOR

Travis Hoppe and Anna Petrone, Jun 06 2014

STATUS

approved

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Last modified September 28 10:48 EDT 2021. Contains 347714 sequences. (Running on oeis4.)