%N A polyspiral path: a(n) represents the n-th vertex of a lattice path with an infinite number of finite square spirals.
%C Also, partial sums of the sequence formed by 0 together with the numbers of A171176 repeated.
%C For another version see A171165.
%Y Cf. A171165, A171173, A171174, A171175, A171176, A171177, A171178.
%A _Omar E. Pol_, Mar 14 2010
%E Edited by _Omar E. Pol_, Mar 16 2010