1,6

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

Eric Weisstein's World of Mathematics, Connected Graph

Eric Weisstein's World of Mathematics, Weakly Regular Graph

a(n) = A005177(n) - A088741(n). - Andrew Howroyd, Sep 03 2019

Cf. A005177 (connected regular graphs).

Cf. A076434 (not-necessarily connected weakly regular graphs).

Cf. A088741 (connected strongly regular graphs).

Sequence in context: A107083 A266694 A284928 * A160218 A208983 A337609

Adjacent sequences: A294402 A294403 A294404 * A294406 A294407 A294408

nonn,more

Eric W. Weisstein, Oct 30 2017

approved