OFFSET
0,2
COMMENTS
The first inflation-deflation step leads to the following configuration (where O marks the reference vertex for this sequence; this vertex is tetravalent from the second inflation-deflation step onwards):
+-----+
| |
| +--+
| | |
+--O +--+--+
| | | |
| +--+--+ +
| | |
+-----+-----+
After k > 1 inflation-deflation steps, we can compute a finite coordination sequence c_k (until we reach the edge of the tiling after k steps). It appears that for i and j such that 1 < i < j, c_i is a prefix of c_j; this sequence is the limiting sequence of the { c_i, i > 1 } family.
See A304076 for a variant of this sequence.
See A304050 for a similar sequence.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 0..512
Rémy Sigrist, Illustration of first terms
Rémy Sigrist, C++ program for A304077
Tilings Encyclopedia, Chair
PROG
(C++) See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, May 06 2018
STATUS
approved