OFFSET
1,4
LINKS
Lars Blomberg, Table of n, a(n) for n = 1..9000
EXAMPLE
Table begins:
[1,1,1],
[2,2,1],
[3,2,2],
[3,3,1],
[3,3,2],
[4,3,2],
[4,3,3],
[4,4,1],
[4,4,3],
[5,3,3],
[5,4,2],
...
CROSSREFS
KEYWORD
AUTHOR
N. J. A. Sloane, Jul 23 2018, following a suggestion from Donald S. McDonald
STATUS
approved