A331454 - cp's OEIS frontend

A331454 Triangle read by rows: T(n,m) (n >= m >= 1) = number of line segments formed by drawing the lines connecting any two of the 2*(m+n) perimeter points of an m X n grid of squares.

n	a(n)
1	8
2	28
3	92
4	80
5	240
6	596
7	178
8	508
9	1028
10	1936
11	372
12	944
13	2004
14	3404
15	6020
16	654
17	1548
18	3018
19	4962
20	8064
21	11088
22	1124
23	2520
24	4808
25	7734
26	12708
27	17022
28	26260
29	1782
30	3754
31	6704
32	10840
33	16608
34	22220
35	32794
36	42144
37	2724
38	5392
39	9780
40	14620
41	22788
42	30238
43	44028
44	54024
45	72296
46	3914
47	7528
48	12720
49	19428
50	29914
51	37848
52	54612
53	67590
54	86906
55	107832

[8, 28, 92, 80, 240, 596, 178, 508, 1028, 1936, 372, 944, 2004, 3404, 6020, 654, 1548, 3018, 4962, 8064, 11088, 1124, 2520, 4808, 7734, 12708, 17022, 26260, 1782, 3754, 6704, 10840, 16608, 22220, 32794, 42144, 2724, 5392, 9780, 14620, 22788, 30238, 44028, 54024, 72296, 3914, 7528, 12720, 19428, 29914, 37848, 54612, 67590, 86906, 107832]

cp's OEIS Frontend

A331454 Triangle read by rows: T(n,m) (n >= m >= 1) = number of line segments formed by drawing the lines connecting any two of the 2*(m+n) perimeter points of an m X n grid of squares.

Table of values

List of values