A139458 Frieze pattern of order 6, with 5 rows, read by diagonals.

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, 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, 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

Offset

0,7

Comments

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

Links

Table of n, a(n) for n=0..98.

K. Bauer and R. J. Marsh, Ptolemy relations for punctured discs, arXiv:0711.1443 [math.CO], 2007.

Index entries for linear recurrences with constant coefficients, 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).

Example

The frieze pattern is:
... 1 1 1 1 1 1 1 ...
.... 1 2 2 2 1 4 ...
... 3 1 3 3 1 3 8 ...
.... 2 1 4 1 2 2 ...
... 1 1 1 1 1 1 1 ...

Crossrefs

Cf. A139434, A139438.

Sequence in context: A332937 A350351 A138297 * A277543 A190594 A338803

Adjacent sequences: A139455 A139456 A139457 * A139459 A139460 A139461

Keyword

nonn,tabf

Author

N. J. A. Sloane, Jun 09 2008

Status

approved