A221157 Number of compositions of the grid graph G_{4,n}.

8, 456, 27780, 1691690, 103015508, 6273056950, 381992581548, 23261112447444, 1416465537909008, 86254456382365422, 5252391281433321840, 319839870650458477666, 19476375116903366115612, 1185997189541765630381252, 72220283556802506132778356, 4397792341346509099717980618, 267799799794395524429805470412, 16307439552264147863293668460374

Offset: 1

Author

N. J. A. Sloane, Jan 04 2013

Keywords

• nonn

Links

• Frank Simon, Algebraic Methods for Computing the Reliability of Networks, Dissertation, Doctor Rerum Naturalium (Dr. rer. nat.), Fakultät Mathematik und Naturwissenschaften der Technischen Universität Dresden, 2012.

Crossrefs

Cf. A108808, A145835.