1,2
Contains one 1, one 2, one 3, three 4's, ....
A137912.
Sequence in context: A204982 A017850 A205785 * A137912 A118577 A135681
Adjacent sequences: A152736 A152737 A152738 * A152740 A152741 A152742
nonn
Paul Curtz (bpcrtz(AT)free.fr), Dec 12 2008
Edited by N. J. A. Sloane (njas(AT)research.att.com), Dec 13 2008