1,2

Permutation of natural numbers with inverse A093715: a(A093715(n))=A093715(a(n))=n.

Table of n, a(n) for n=1..72.

Index entries for sequences that are permutations of the natural numbers

Cf. A085229.

Sequence in context: A093715 A277911 A085229 * A080261 A138310 A270197

Adjacent sequences: A093711 A093712 A093713 * A093715 A093716 A093717

nonn

Reinhard Zumkeller, Apr 12 2004

approved