The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A171164 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing all changes.

A171164

A polyspiral path: a(n) represents the n-th vertex of a lattice path with an infinite number of finite square spirals.
(history; published version)

#2 by Russ Cox at Fri Mar 30 17:34:03 EDT 2012

AUTHOR

_Omar E. Pol (info(AT)polprimos.com), _, Mar 14 2010

Discussion

Fri Mar 30

17:34

OEIS Server: https://oeis.org/edit/global/157

#1 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010

NAME

A polyspiral path: a(n) represents the n-th vertex of a lattice path with an infinite number of finite square spirals.

DATA

0, 1, 2, 3, 4, 8, 12, 13, 14, 16, 18, 21, 24, 31, 38, 39, 40, 42, 44, 47, 50, 54, 58, 63, 68, 78, 88, 89, 90, 92, 94, 97, 100, 104, 108, 113, 118, 124, 130, 137, 144, 157, 170, 171, 172, 174, 176, 179, 182, 186, 190, 195, 200, 206, 212

OFFSET

0,3

COMMENTS

Note that the vertex 0 and the vertex 4 both are overlapping.

For other versions see A171165 and A171166.

Also, partial sums of the sequence formed by 0 together with the numbers of A171172 repeated.

CROSSREFS

Cf. A171165, A171166, A171172, A171173, A171174, A171175, A171176, A171177, A171178.

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Mar 14 2010

STATUS

approved