1,2

Greek Key Tours are self-avoiding walks that touch every vertex of the grid and start at the bottom-left corner.

N. Johnston, On Maximal Self-Avoiding Walks.

Cf. A046994, A046995, A145156, A145157

Sequence in context: A116280 A134788 A167498 this_sequence A069669 A145359 A145360

Adjacent sequences: A160237 A160238 A160239 this_sequence A160241 A160242 A160243

hard,more,nonn

Nathaniel Johnston (nathaniel(AT)nathanieljohnston.com), May 05 2009