OFFSET
0,3
COMMENTS
Period 15: repeat [1, 1, 2, 3, 1, 1, 3, 5, 2, 1, 1, 2, 1, 1, 1]. - Wesley Ivan Hurt, Jun 05 2016
LINKS
James Propp, The combinatorics of frieze patterns and Markoff numbers, arXiv:math/0511633v4.
FORMULA
Four adjacent entries
...A...
.B...C.
...D...
satisfy D = (BC-1)/A.
EXAMPLE
The frieze pattern is
... 1 1 1 1 1 1 1 ...
.....1 3 2 1 3 2 ...
....1 2 5 1 2 5 1 ...
.....1 3 2 1 3 2 ...
... 1 1 1 1 1 1 1 ...
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
N. J. A. Sloane, Jun 09 2008
STATUS
approved