A295707 - cp's OEIS frontend

A295707 Square array A(n,k), n >= 1, k >= 1, read by antidiagonals, where A(n,k) is the number of lines through at least 2 points of an n X k grid of points.

n	a(n)
1	0
2	1
3	1
4	1
5	6
6	1
7	1
8	11
9	11
10	1
11	1
12	18
13	20
14	18
15	1
16	1
17	27
18	35
19	35
20	27
21	1
22	1
23	38
24	52
25	62
26	52
27	38
28	1
29	1
30	51
31	75
32	93
33	93
34	75
35	51
36	1
37	1
38	66
39	100
40	136
41	140
42	136
43	100
44	66
45	1
46	1
47	83
48	131
49	181
50	207
51	207
52	181
53	131
54	83
55	1
56	1
57	102
58	164
59	238
60	274
61	306
62	274
63	238
64	164
65	102
66	1

[0, 1, 1, 1, 6, 1, 1, 11, 11, 1, 1, 18, 20, 18, 1, 1, 27, 35, 35, 27, 1, 1, 38, 52, 62, 52, 38, 1, 1, 51, 75, 93, 93, 75, 51, 1, 1, 66, 100, 136, 140, 136, 100, 66, 1, 1, 83, 131, 181, 207, 207, 181, 131, 83, 1, 1, 102, 164, 238, 274, 306, 274, 238, 164, 102, 1]

cp's OEIS Frontend

A295707 Square array A(n,k), n >= 1, k >= 1, read by antidiagonals, where A(n,k) is the number of lines through at least 2 points of an n X k grid of points.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	6
6	1
7	1
8	11
9	11
10	1
11	1
12	18
13	20
14	18
15	1
16	1
17	27
18	35
19	35
20	27
21	1
22	1
23	38
24	52
25	62
26	52
27	38
28	1
29	1
30	51
31	75
32	93
33	93
34	75
35	51
36	1
37	1
38	66
39	100
40	136
41	140
42	136
43	100
44	66
45	1
46	1
47	83
48	131
49	181
50	207
51	207
52	181
53	131
54	83
55	1
56	1
57	102
58	164
59	238
60	274
61	306
62	274
63	238
64	164
65	102
66	1

n	a(n)
1	0
2	1
3	1
4	1
5	6
6	1
7	1
8	11
9	11
10	1
11	1
12	18
13	20
14	18
15	1
16	1
17	27
18	35
19	35
20	27
21	1
22	1
23	38
24	52
25	62
26	52
27	38
28	1
29	1
30	51
31	75
32	93
33	93
34	75
35	51
36	1
37	1
38	66
39	100
40	136
41	140
42	136
43	100
44	66
45	1
46	1
47	83
48	131
49	181
50	207
51	207
52	181
53	131
54	83
55	1
56	1
57	102
58	164
59	238
60	274
61	306
62	274
63	238
64	164
65	102
66	1

n	a(n)
1	0
2	1
3	1
4	1
5	6
6	1
7	1
8	11
9	11
10	1
11	1
12	18
13	20
14	18
15	1
16	1
17	27
18	35
19	35
20	27
21	1
22	1
23	38
24	52
25	62
26	52
27	38
28	1
29	1
30	51
31	75
32	93
33	93
34	75
35	51
36	1
37	1
38	66
39	100
40	136
41	140
42	136
43	100
44	66
45	1
46	1
47	83
48	131
49	181
50	207
51	207
52	181
53	131
54	83
55	1
56	1
57	102
58	164
59	238
60	274
61	306
62	274
63	238
64	164
65	102
66	1