A353532 - cp's OEIS frontend

A353532 T(n,m) is the number of non-congruent quadrilaterals with integer vertex coordinates (x1,1), (n,y2), (x3,m), (1,y4), 1 < x1, x3 < n, 1 < y2, y4 < m, m <= n, such that the 6 distances between the 4 vertices are distinct.

n	a(n)
3	0
4	0
5	0
6	0
7	3
8	1
9	1
10	7
11	12
12	11
13	1
14	11
15	26
16	52
17	40
18	4
19	23
20	50
21	94
22	147
23	105
24	4
25	30
26	69
27	127
28	198
29	301
30	190
31	10
32	49
33	103
34	192
35	302
36	444
37	583
38	379
39	10
40	58
41	127
42	244
43	387
44	576
45	754
46	1039
47	616
48	18
49	84
50	180
51	329
52	509
53	756
54	989
55	1334
56	1680
57	987
58	18
59	94
60	209
61	389
62	611
63	910
64	1203
65	1618
66	2052
67	2581
68	1426

[0, 0, 0, 0, 3, 1, 1, 7, 12, 11, 1, 11, 26, 52, 40, 4, 23, 50, 94, 147, 105, 4, 30, 69, 127, 198, 301, 190, 10, 49, 103, 192, 302, 444, 583, 379, 10, 58, 127, 244, 387, 576, 754, 1039, 616, 18, 84, 180, 329, 509, 756, 989, 1334, 1680, 987, 18, 94, 209, 389, 611, 910, 1203, 1618, 2052, 2581, 1426]

cp's OEIS Frontend

A353532 T(n,m) is the number of non-congruent quadrilaterals with integer vertex coordinates (x1,1), (n,y2), (x3,m), (1,y4), 1 < x1, x3 < n, 1 < y2, y4 < m, m <= n, such that the 6 distances between the 4 vertices are distinct.

Table of values

List of values