A347722 Number of irredundant sets in the n-triangular (Johnson) graph.

4, 22, 76, 406, 2304, 14316

Offset

3,1

Links

Table of n, a(n) for n=3..8.

Eric Weisstein's World of Mathematics, Irredundant Set

Eric Weisstein's World of Mathematics, Triangular Graph

Crossrefs

Sequence in context: A241689 A052149 A062966 * A201127 A259709 A078155

Adjacent sequences: A347719 A347720 A347721 * A347723 A347724 A347725

Keyword

nonn,more

Author

Eric W. Weisstein, Sep 11 2021

Status

approved