A218431 - cp's OEIS frontend

A218431 Cyclic quadrilateral numbers: numbers m = abc*d such that the integers a,b,c,d are the sides of a cyclic quadrilateral whose area and circumradius are integers.

n	a(n)
1	2304
2	36864
3	57600
4	186624
5	230400
6	451584
7	589824
8	630000
9	806400
10	921600
11	1440000
12	2073600
13	2822400
14	2985984
15	3686400
16	4665600
17	5531904
18	6969600
19	7225344
20	8960000
21	9437184
22	10080000
23	12672000
24	12902400
25	14745600
26	15116544
27	16257024
28	18662400
29	19079424

[2304, 36864, 57600, 186624, 230400, 451584, 589824, 630000, 806400, 921600, 1440000, 2073600, 2822400, 2985984, 3686400, 4665600, 5531904, 6969600, 7225344, 8960000, 9437184, 10080000, 12672000, 12902400, 14745600, 15116544, 16257024, 18662400, 19079424]

cp's OEIS Frontend

A218431 Cyclic quadrilateral numbers: numbers m = abc*d such that the integers a,b,c,d are the sides of a cyclic quadrilateral whose area and circumradius are integers.

Table of values

List of values

cp's OEIS Frontend

A218431 Cyclic quadrilateral numbers: numbers m = a*b*c*d such that the integers a,b,c,d are the sides of a cyclic quadrilateral whose area and circumradius are integers.

Table of values

List of values

A218431 Cyclic quadrilateral numbers: numbers m = abc*d such that the integers a,b,c,d are the sides of a cyclic quadrilateral whose area and circumradius are integers.