1,2
Contains one 1, one 2, one 3, three 4's, ....
A137912.
Sequence in context: A017870 A017860 A017850 this_sequence A137912 A118577 A135681
Adjacent sequences: A152736 A152737 A152738 this_sequence 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
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