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A358697
Number of self-avoiding closed paths in the 6 X n grid graph which pass through all vertices on four (left, right, upper, lower) sides of the graph.
2
1, 11, 122, 1123, 11346, 113748, 1153742, 11674245, 118180383, 1195822385, 12100751361, 122447319062
OFFSET
2,2
CROSSREFS
Row 6 of A333758.
Sequence in context: A067218 A368114 A293805 * A288791 A049666 A163462
KEYWORD
nonn,more
AUTHOR
Seiichi Manyama, Nov 27 2022
STATUS
approved