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a(n) = A256046(2n+1): order of all-2s configuration on the (2n+1) X (2n+1) sandpile grid graph.
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%I #12 Mar 18 2018 08:54:06

%S 8,52,272,73124

%N a(n) = A256046(2n+1): order of all-2s configuration on the (2n+1) X (2n+1) sandpile grid graph.

%H Laura Florescu, Daniela Morar, David Perkinson, Nicholas Salter, Tianyuan Xu, <a href="http://www.combinatorics.org/ojs/index.php/eljc/article/view/v22i1p66">Sandpiles and Dominos</a>, Electronic Journal of Combinatorics, Volume 22(1), 2015.

%Y C. A256045, A256046, A256043.

%K nonn,more

%O 1,1

%A _N. J. A. Sloane_, Mar 15 2015

%E Definition corrected by _M. F. Hasler_, Mar 08 2018