

A171164


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


6



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
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OFFSET

0,3


COMMENTS

Note that the vertex 0 and the vertex 4 both are overlapping.
Also, partial sums of the sequence formed by 0 together with the numbers of A171172 repeated.


LINKS



CROSSREFS



KEYWORD

easy,nonn


AUTHOR



STATUS

approved



