OFFSET
1,3
COMMENTS
This is equally the minimal number of steps to reach 5*n from 5 using "Choix de Bruxelles" version 1 (cf. A323286). - N. J. A. Sloane, Jan 24 2019
The sequence is well defined as we can reach any multiple of 5 starting from 5.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
Eric Angelini, Lars Blomberg, Charlie Neder, Remy Sigrist, and N. J. A. Sloane, "Choix de Bruxelles": A New Operation on Positive Integers, arXiv:1902.01444, Feb 2019; Fib. Quart. 57:3 (2019), 195-200.
Brady Haran and N. J. A. Sloane, The Brussels Choice, Numberphile video (2020)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Rémy Sigrist, Jan 16 2019
STATUS
approved