A297790 - OEIS

A297790

Areas of integer side-length cyclic quadrilaterals, excluding rectangles and kites with two right angles, with integer area.

12, 15, 16, 18, 20, 21, 24, 28, 30, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 65, 66, 70, 72, 75, 78, 80, 84, 85, 88, 90, 95, 96, 99, 100, 102, 104, 105, 108, 110, 112, 115, 117, 120, 126, 128, 130, 132, 135, 136, 140, 144, 150, 152, 153, 154, 156, 160, 162, 165, 168, 170, 171, 175, 176, 180, 182, 184, 189, 190, 192, 195, 196, 198, 200, 203, 204, 207, 208, 210, 216, 217, 220, 224, 225, 228, 230, 231, 232, 234, 238

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..90.

Daniel J Hardisky, Omission of Area 64

CROSSREFS