A358698 Number of self-avoiding closed paths in the 7 X n grid graph which pass through all vertices on four (left, right, upper, lower) sides of the graph.
1, 21, 408, 6410, 113748, 2002405, 35669433, 633099244, 11240647480, 199480271184, 3540336868535, 62831861216325, 1115122033297714, 19790829247392636, 351241699540793996, 6233729269914805533, 110634310753645173365, 1963503651093439655818, 34847658208568166865562, 618465506517313482341986
Offset: 2
Keywords
Links
- Seiichi Manyama, Table of n, a(n) for n = 2..50
Crossrefs
Row 7 of A333758.