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%I #13 Feb 19 2021 00:03:52
%S 1,1,1,1,1,1,2,3,4,1,1,2,3,1,1,1,2,1,2,1,1,1,3,2,1,1,4,3,2,1,1,1,1,1,
%T 1,1,2,3,4,1,1,2,3,1,1,1,2,1,2,1,1,1,3,2,1,1,4,3,2,1,1,1,1,1,1,1,2,3,
%U 4,1,1,2,3,1,1,1,2,1,2,1,1,1,3,2,1,1,4,3,2,1,1,1,1,1,1,1,2,3,4
%N Frieze pattern of order 6, with 5 rows, read by diagonals.
%C Period 30: repeat [1, 1, 1, 1, 1, 1, 2, 3, 4, 1, 1, 2, 3, 1, 1, 1, 2, 1, 2, 1, 1, 1, 3, 2, 1, 1, 4, 3, 2, 1]. - _Wesley Ivan Hurt_, Jun 05 2016
%H K. Bauer and R. J. Marsh, <a href="http://arxiv.org/abs/0711.1443">Ptolemy relations for punctured discs</a>, arXiv:0711.1443 [math.CO], 2007.
%H <a href="/index/Rec#order_30">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1).
%e The frieze pattern is:
%e ... 1 1 1 1 1 1 1 ...
%e .... 1 2 2 2 1 4 ...
%e ... 3 1 3 3 1 3 8 ...
%e .... 2 1 4 1 2 2 ...
%e ... 1 1 1 1 1 1 1 ...
%Y Cf. A139434, A139438.
%K nonn,tabf
%O 0,7
%A _N. J. A. Sloane_, Jun 09 2008