A211801 Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w^3<x^3+y^3.

0, 3, 13, 34, 68, 117, 187, 282, 406, 559, 743, 966, 1232, 1545, 1899, 2304, 2764, 3285, 3869, 4512, 5222, 6005, 6867, 7812, 8828, 9931, 11125, 12412, 13798, 15271, 16847, 18532, 20330, 22239, 24255, 26394, 28660, 31055, 33573, 36222

Offset

1,2

Comments

Row 3 of A211802; see A211790 for a discussion and guide to related sequences.

Links

Table of n, a(n) for n=1..40.

Mathematica

(See the program at A211802.)

Crossrefs

Cf. A211790, A211802.

Sequence in context: A332366 A033943 A026084 * A016061 A154154 A281868

Adjacent sequences: A211798 A211799 A211800 * A211802 A211803 A211804

Keyword

nonn

Author

Clark Kimberling, Apr 22 2012

Status

approved