A171164 A polyspiral path: a(n) represents the n-th vertex of a lattice path with an infinite number of finite square spirals.

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.

Links

Table of n, a(n) for n=0..54.

Crossrefs

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

Sequence in context: A164573 A360706 A064418 * A361108 A283659 A355441

Adjacent sequences: A171161 A171162 A171163 * A171165 A171166 A171167

Keyword

easy,nonn

Author

Omar E. Pol, Mar 14 2010

Status

approved