A171165 A polyspiral path: a(n) represents the n-th vertex of a lattice path with an infinite number of finite square spirals.

0, 2, 4, 5, 6, 10, 14, 15, 16, 18, 20, 23, 26, 33, 40, 41, 42, 44, 46, 49, 52, 56, 60, 65, 70, 80, 90, 91, 92, 94, 96, 99, 102, 106, 110, 115, 120, 126, 132, 139, 146, 159, 172, 173, 174, 176, 178, 181, 184, 188, 192, 197, 202, 208, 214

Offset: 0

Author

Omar E. Pol, Mar 14 2010

Keywords

• easy
• nonn

Comments

Also, partial sums of the sequence formed by 0 together the numbers of A171173 repeated.

For another version see A171166.

Crossrefs

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