A256046 Main diagonal of A256045: order of all-2s configuration on the n X n sandpile grid graph.

1, 8, 3, 52, 29, 272, 901, 73124, 89893

Offset

2,2

Links

Table of n, a(n) for n=2..10.

Laura Florescu, Daniela Morar, David Perkinson, Nicholas Salter, Tianyuan Xu, Sandpiles and Dominos, Electronic Journal of Combinatorics, Volume 22(1), 2015.

Crossrefs

Cf. A256043, A256045, A256047.

Sequence in context: A302214 A049074 A286034 * A197245 A302462 A303244

Adjacent sequences: A256043 A256044 A256045 * A256047 A256048 A256049

Keyword

nonn,more

Author

N. J. A. Sloane, Mar 15 2015

Status

approved