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A100243
a(n) is the length of a side of triangle A068619(n) or a(n) = (sqrt(8*A068619(n) + 1) - 1)/2.
0
2, 8, 16, 51, 476, 14851, 1484980, 479637019, 1513291667355
OFFSET
1,1
CROSSREFS
Cf. A068619.
Sequence in context: A336127 A076508 A162584 * A026523 A066792 A096195
KEYWORD
more,base,nonn
AUTHOR
Ray G. Opao, Jan 14 2005
EXTENSIONS
Corrected a(5) and added a(6)-a(9) based on updated A068619 by Jesse Sealand, May 24 2019
STATUS
approved