A211810 Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w^2>x^2+y^2.

0, 3, 11, 28, 56, 97, 153, 230, 330, 453, 605, 788, 1002, 1251, 1541, 1872, 2244, 2667, 3139, 3662, 4240, 4877, 5571, 6330, 7158, 8055, 9021, 10062, 11182, 12379, 13657, 15026, 16480, 18021, 19661, 21398, 23232, 25169, 27211, 29362, 31618

Offset

1,2

Comments

Row 2 of A182259; see A211790 for a discussion and guide to related sequences.

Links

Table of n, a(n) for n=1..41.

Mathematica

(See the program at A182259.)

Crossrefs

Cf. A211790, A182259.

Sequence in context: A136983 A210611 A119074 * A182260 A163696 A092781

Adjacent sequences: A211807 A211808 A211809 * A211811 A211812 A211813

Keyword

nonn

Author

Clark Kimberling, Apr 22 2012

Status

approved