1,2

If A125718 is a permutation of the positive integers, then this is the inverse permutation.

Table of n, a(n) for n=1..63.

Index entries for sequences that are permutations of the natural numbers

(PARI) A249678(n)=for(i=1, 9e9, A125718(i)==n&&return(i))

Sequence in context: A298021 A016461 A069576 * A300854 A323745 A109899

Adjacent sequences: A249675 A249676 A249677 * A249679 A249680 A249681

nonn

M. F. Hasler, Nov 03 2014

approved