A307151 Row 5 of array in A059897.

5, 10, 15, 20, 1, 30, 35, 40, 45, 2, 55, 60, 65, 70, 3, 80, 85, 90, 95, 4, 105, 110, 115, 120, 125, 130, 135, 140, 145, 6, 155, 160, 165, 170, 7, 180, 185, 190, 195, 8, 205, 210, 215, 220, 9, 230, 235, 240, 245, 250, 255, 260, 265, 270, 11, 280, 285, 290, 295

Offset: 1

Author

Peter Munn and N. J. A. Sloane, Mar 29 2019

Keywords

• nonn

Comments

Also column 5 of A059897.

A self-inverse permutation of the positive integers with no fixed points that swaps pairs of integers whose ratio is 1:5.

Links

• Alois P. Heinz, Table of n, a(n) for n = 1..10000
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Cf. A059897.

Has same start as A283442 but that sequence is different (it has repeated terms).

Programs

Maple

a:= n-> `if`(padic[ordp](n, 5)::odd, n/5, n*5):
seq(a(n), n=1..60);

Formula

a(n) = A059897(5,n) = A059897(n,5).

Extensions

More terms from Alois P. Heinz, Mar 31 2019