A327120 Inverse permutation to A327119.

1, 2, 4, 3, 6, 10, 8, 5, 7, 16, 12, 28, 14, 22, 9, 11, 18, 15, 20, 26, 13, 34, 24, 82, 46, 40, 36, 19, 30, 23, 32, 21, 64, 52, 17, 50, 38, 58, 76, 27, 42, 244, 44, 56, 31, 70, 48, 25, 29, 100, 66, 35, 54, 39, 136, 43, 106, 88, 60, 118, 62, 94, 37, 51, 78, 47, 68, 86

Offset: 0

Author

Jennifer Buckley, Sep 13 2019

Keywords

• nonn

Links

• Jennifer Buckley, Table of n, a(n) for n = 0..10000

Crossrefs

Inverse: A327119.

Programs

PARI

a(n) = { my (d=0); while (n, d = select(t -> t>d, divisors(n))[1]; my (k=n/d); if (k%2, n-=d, n+=d)); return (d+1) } \\ Rémy Sigrist, Sep 14 2019