A343993 Number of nodes in the graph AC(n,n).

5, 37, 353, 1761, 8917, 26773, 84497, 215545, 508613, 1044825, 2184125, 4036481, 7550669, 13068897, 21666789, 34540637, 55656469, 84953609, 130542493, 192747673, 278927225, 393687369, 559130085, 770515489, 1059144047

Offset

1,1

Comments

Taken from Lars Blomberg's b-file for A288180.

Links

Table of n, a(n) for n=1..25.

Lars Blomberg, Scott R. Shannon, and N. J. A. Sloane, Graphical Enumeration and Stained Glass Windows, 1: Rectangular Grids, (2020). Also arXiv:2009.07918.

Crossrefs

Main diagonal of triangle A288180.

Sequence in context: A370343 A258296 A197713 * A356848 A004208 A198077

Adjacent sequences: A343990 A343991 A343992 * A343994 A343995 A343996

Keyword

nonn

Author

N. J. A. Sloane, May 17 2021

Status

approved