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Let us call integers m and n collinear one to another if either A059905(m)=A059905(n) or A059906(m)=A059906(n). Then a(n) is the number of noncollinear to n nonnegative integers not exceeding n.
Table of n, a(n) for n=0..63.
Cf. A000695, A054238, A059905, A059906.
Sequence in context: A145787 A096111 A101081 * A258186 A038716 A168659
Adjacent sequences: A147792 A147793 A147794 * A147796 A147797 A147798
Vladimir Shevelev, Nov 13 2008
More terms from Philippe Deléham, Oct 18 2011