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This is a permutation of the positive integers.
Apparently, a self inverse permutation.
There are no fixed points.
Paul Tek, Table of n, a(n) for n = 1..10000
Paul Tek, Perl program for this sequence
Index entries for sequences that are permutations of the natural numbers
(Perl) See Link section.
Sequence in context: A028297 A207537 A114438 * A262230 A262155 A181882
Adjacent sequences: A238754 A238755 A238756 * A238758 A238759 A238760
Paul Tek, Mar 05 2014