OFFSET
1,4
COMMENTS
A fractal sequence.
LINKS
Clark Kimberling and John E. Brown, Partial Complements and Transposable Dispersions, J. Integer Seqs., Vol. 7, 2004.
EXAMPLE
Northwest corner of R:
.1 3 7 12 19
.2 5 10 16 24
.4 8 14 21 30
.6 11 18 26 36
.9 15 23 32 43
a(11)=3 because 11 is in row 3.
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Sep 09 2003
STATUS
approved