OFFSET
0,3
COMMENTS
This sequence is a self-inverse permutation of the nonnegative integers.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 0..10944
Rémy Sigrist, PARI program
EXAMPLE
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
AUTHOR
Rémy Sigrist, Oct 02 2022
STATUS
approved