A342041 - cp's OEIS frontend

A342041 Triangle read by rows: T(n,k) = maximum number of lines of size k on n points so that every two lines intersect in one point.

n	a(n)
2	1
3	3
4	1
5	3
6	1
7	1
8	4
9	2
10	1
11	1
12	5
13	4
14	1
15	1
16	1
17	6
18	7
19	2
20	1
21	1
22	1
23	7
24	7
25	2
26	1
27	1
28	1
29	1
30	8
31	7
32	3
33	2
34	1
35	1
36	1
37	1
38	9
39	7
40	5
41	2
42	1
43	1
44	1
45	1
46	1
47	10
48	7
49	6
50	2
51	2
52	1
53	1
54	1
55	1
56	1
57	11
58	7
59	9
60	3
61	2
62	1
63	1
64	1
65	1
66	1
67	1
68	12
69	7
70	13
71	3
72	2
73	2
74	1
75	1
76	1
77	1
78	1
79	1
80	13
81	7
82	13
83	4

[1, 3, 1, 3, 1, 1, 4, 2, 1, 1, 5, 4, 1, 1, 1, 6, 7, 2, 1, 1, 1, 7, 7, 2, 1, 1, 1, 1, 8, 7, 3, 2, 1, 1, 1, 1, 9, 7, 5, 2, 1, 1, 1, 1, 1, 10, 7, 6, 2, 2, 1, 1, 1, 1, 1, 11, 7, 9, 3, 2, 1, 1, 1, 1, 1, 1, 12, 7, 13, 3, 2, 2, 1, 1, 1, 1, 1, 1, 13, 7, 13, 4]

cp's OEIS Frontend

A342041 Triangle read by rows: T(n,k) = maximum number of lines of size k on n points so that every two lines intersect in one point.

Table of values

List of values

n	a(n)
2	1
3	3
4	1
5	3
6	1
7	1
8	4
9	2
10	1
11	1
12	5
13	4
14	1
15	1
16	1
17	6
18	7
19	2
20	1
21	1
22	1
23	7
24	7
25	2
26	1
27	1
28	1
29	1
30	8
31	7
32	3
33	2
34	1
35	1
36	1
37	1
38	9
39	7
40	5
41	2
42	1
43	1
44	1
45	1
46	1
47	10
48	7
49	6
50	2
51	2
52	1
53	1
54	1
55	1
56	1
57	11
58	7
59	9
60	3
61	2
62	1
63	1
64	1
65	1
66	1
67	1
68	12
69	7
70	13
71	3
72	2
73	2
74	1
75	1
76	1
77	1
78	1
79	1
80	13
81	7
82	13
83	4

n	a(n)
2	1
3	3
4	1
5	3
6	1
7	1
8	4
9	2
10	1
11	1
12	5
13	4
14	1
15	1
16	1
17	6
18	7
19	2
20	1
21	1
22	1
23	7
24	7
25	2
26	1
27	1
28	1
29	1
30	8
31	7
32	3
33	2
34	1
35	1
36	1
37	1
38	9
39	7
40	5
41	2
42	1
43	1
44	1
45	1
46	1
47	10
48	7
49	6
50	2
51	2
52	1
53	1
54	1
55	1
56	1
57	11
58	7
59	9
60	3
61	2
62	1
63	1
64	1
65	1
66	1
67	1
68	12
69	7
70	13
71	3
72	2
73	2
74	1
75	1
76	1
77	1
78	1
79	1
80	13
81	7
82	13
83	4

n	a(n)
2	1
3	3
4	1
5	3
6	1
7	1
8	4
9	2
10	1
11	1
12	5
13	4
14	1
15	1
16	1
17	6
18	7
19	2
20	1
21	1
22	1
23	7
24	7
25	2
26	1
27	1
28	1
29	1
30	8
31	7
32	3
33	2
34	1
35	1
36	1
37	1
38	9
39	7
40	5
41	2
42	1
43	1
44	1
45	1
46	1
47	10
48	7
49	6
50	2
51	2
52	1
53	1
54	1
55	1
56	1
57	11
58	7
59	9
60	3
61	2
62	1
63	1
64	1
65	1
66	1
67	1
68	12
69	7
70	13
71	3
72	2
73	2
74	1
75	1
76	1
77	1
78	1
79	1
80	13
81	7
82	13
83	4