A286869 Number of irredundant sets in the grid graph P_n X P_n.

2, 11, 113, 4481, 425926, 116003176, 84850904785, 169727130490809, 923777353698065520, 13700760654444668547510

Offset: 1

Author

Andrew Howroyd, Aug 02 2017

Keywords

• nonn
• more

Links

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

Crossrefs

Main diagonal of A286868.

Cf. A286871 (king graph).

Extensions

a(10) from Christian Sievers, Nov 23 2023