A336731 - cp's OEIS frontend

A336731 Three-column table read by rows: row n gives [number of triangle-triangle, triangle-quadrilateral, quadrilateral-quadrilateral] contacts for a row of n adjacent congruent rectangles divided by drawing diagonals of all possible rectangles (cf. A331452).

n	a(n)
1	4
2	0
3	0
4	14
5	8
6	0
7	20
8	48
9	4
10	60
11	80
12	28
13	68
14	224
15	68
16	148
17	368
18	124
19	224
20	616
21	268
22	336
23	1008
24	420
25	384
26	1672
27	648
28	712
29	2208
30	972
31	972
32	3120
33	1464
34	1300
35	4304
36	1996
37	1496
38	6040
39	2788
40	2044
41	7936
42	3580
43	2612
44	10224
45	4672
46	3540
47	12656
48	5980
49	4224
50	16104
51	7676
52	5484
53	19648
54	9500

[4, 0, 0, 14, 8, 0, 20, 48, 4, 60, 80, 28, 68, 224, 68, 148, 368, 124, 224, 616, 268, 336, 1008, 420, 384, 1672, 648, 712, 2208, 972, 972, 3120, 1464, 1300, 4304, 1996, 1496, 6040, 2788, 2044, 7936, 3580, 2612, 10224, 4672, 3540, 12656, 5980, 4224, 16104, 7676, 5484, 19648, 9500]

cp's OEIS Frontend

A336731 Three-column table read by rows: row n gives [number of triangle-triangle, triangle-quadrilateral, quadrilateral-quadrilateral] contacts for a row of n adjacent congruent rectangles divided by drawing diagonals of all possible rectangles (cf. A331452).

Table of values

List of values