A347724 Number of irredundant sets in the n-triangular grid graph.

2, 4, 17, 102, 925, 12508, 274369, 8955595, 447311286, 34069625935, 3993234239468

Offset: 0

Author

Eric W. Weisstein, Sep 11 2021

Keywords

• nonn
• more

Links

• Eric Weisstein's World of Mathematics, Irredundant Set
• Eric Weisstein's World of Mathematics, Triangular Grid Graph

Crossrefs

Cf. A346143, A347639.

Extensions

Missing a(0) inserted and a(7)-a(10) from Andrew Howroyd, Jan 19 2022