OFFSET
1,2
COMMENTS
Every positive integer occurs once and only once somewhere in this sequence.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
Rémy Sigrist, PARI program
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
N. J. A. Sloane, Nov 29 2001
EXTENSIONS
More terms from John W. Layman, Jan 17 2002
More terms from David Wasserman, Aug 30 2002
STATUS
approved