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Number of (undirected) paths in the 7 X n king graph.
3

%I #30 Jan 29 2023 02:24:15

%S 21,202719,375341540,834776217484,1482823362091281,

%T 2480146959625512771,3954100866385811897908,6098277513580967335984126,

%U 9152733286084921835343938561,13441847550989968623927296910019,19393111514791549266474890223886106,27568262002518118100083519899700564808

%N Number of (undirected) paths in the 7 X n king graph.

%H Andrew Howroyd, <a href="/A358665/b358665.txt">Table of n, a(n) for n = 1..50</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/GraphPath.html">Graph Path</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/KingGraph.html">King Graph</a>

%Y Row 7 of A307026.

%K nonn

%O 1,1

%A _Seiichi Manyama_, Dec 12 2022

%E Terms a(8) and beyond from _Andrew Howroyd_, Jan 28 2023