OFFSET
1,3
COMMENTS
Number of walks reaching each cell exactly once.
LINKS
Ed Wynn, Table of n, a(n) for n = 1..19 (first 18 terms from KeyTo9(AT)Fans)
KeyTo9(AT)Fans, Counting paths in a grid - Chinese web page giving the sequence up to 18 items.
Douglas M. McKenna, Tendril Motifs for Space-Filling, Half-Domino Curves, in: Bridges Finland Conference Proceedings, 2016, pp. 119-126.
Douglas M. McKenna, Are Maximally Unbalanced Hilbert-Style Square-Filling Curve Motifs a Drawing Medium?, Bridges Conf. Proc.; Math., Art, Music, Architecture, Culture (2023) 91-98.
KEYWORD
nonn,walk
AUTHOR
Russ Cox, Mar 15 1996
EXTENSIONS
More terms from Zhao Hui Du, Jul 08 2008
Edited by Franklin T. Adams-Watters, Jul 03 2009
Name clarified by Andrew Howroyd, Apr 10 2016
STATUS
approved