A259791 - OEIS

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A259791

Number of connected D-integral graphs on n vertices.

0

1, 1, 1, 2, 1, 5, 4, 7, 9, 19

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,4

LINKS

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

Milan Pokorný, et al., On distance integral graphs, Discrete Mathematics, 338 (2015), 1784-1792.

CROSSREFS

Sequence in context: A249905 A171175 A176053 * A325771 A207480 A166517

Adjacent sequences: A259788 A259789 A259790 * A259792 A259793 A259794

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jul 06 2015

STATUS

approved