A288032 Number of (undirected) paths in the n X n grid graph.

0, 12, 322, 14248, 1530196, 436619868, 343715004510, 766012555199052, 4914763477312679808, 91781780911712980966236, 5028368533802124263609489682, 813124448051069045700905179168520

Offset: 1

Author

Eric W. Weisstein, Jun 04 2017

Keywords

• nonn
• more

Comments

Paths of length zero are not counted here. - Andrew Howroyd, Jun 10 2017

Links

• Eric Weisstein's World of Mathematics, Graph Path
• Eric Weisstein's World of Mathematics, Grid Graph

Crossrefs

Main diagonal of A288518.

Cf. A236753, A288033, A288148, A007764, A121785, A120443.

Extensions

a(6)-a(12) from Andrew Howroyd, Jun 10 2017