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1,2

This is a self-inverse permutation of the positive integers.

Table of n, a(n) for n=1..56.

Multiplicative with a(p^{3n}) = p^{3n}, a(p^{3n+1}) = p^{3n+2), and a(p^{3n+2)) = p^{3n+1).

Cf. A064429 (function on exponents)

Sequence in context: A007914 A048758 A277802 * A011262 A073843 A073842

Adjacent sequences: A159250 A159251 A159252 * A159254 A159255 A159256

mult,nonn

Franklin T. Adams-Watters, Apr 07 2009

approved