A204143 - cp's OEIS frontend

A204143 Symmetric matrix based on f(i,j)=max(ceiling(i/j),ceiling(j/i)), by antidiagonals.

n	a(n)
1	1
2	2
3	2
4	3
5	1
6	3
7	4
8	2
9	2
10	4
11	5
12	2
13	1
14	2
15	5
16	6
17	3
18	2
19	2
20	3
21	6
22	7
23	3
24	2
25	1
26	2
27	3
28	7
29	8
30	4
31	2
32	2
33	2
34	2
35	4
36	8
37	9
38	4
39	3
40	2
41	1
42	2
43	3
44	4
45	9
46	10
47	5
48	3
49	2
50	2
51	2
52	2
53	3
54	5
55	10
56	11
57	5
58	3
59	2
60	2
61	1
62	2
63	2
64	3
65	5
66	11
67	12
68	6
69	4
70	3
71	2
72	2
73	2
74	2
75	3
76	4
77	6
78	12
79	13
80	6
81	4
82	3
83	2
84	2
85	1
86	2
87	2
88	3
89	4
90	6
91	13
92	14
93	7
94	4
95	3

[1, 2, 2, 3, 1, 3, 4, 2, 2, 4, 5, 2, 1, 2, 5, 6, 3, 2, 2, 3, 6, 7, 3, 2, 1, 2, 3, 7, 8, 4, 2, 2, 2, 2, 4, 8, 9, 4, 3, 2, 1, 2, 3, 4, 9, 10, 5, 3, 2, 2, 2, 2, 3, 5, 10, 11, 5, 3, 2, 2, 1, 2, 2, 3, 5, 11, 12, 6, 4, 3, 2, 2, 2, 2, 3, 4, 6, 12, 13, 6, 4, 3, 2, 2, 1, 2, 2, 3, 4, 6, 13, 14, 7, 4, 3]

cp's OEIS Frontend

A204143 Symmetric matrix based on f(i,j)=max(ceiling(i/j),ceiling(j/i)), by antidiagonals.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	3
5	1
6	3
7	4
8	2
9	2
10	4
11	5
12	2
13	1
14	2
15	5
16	6
17	3
18	2
19	2
20	3
21	6
22	7
23	3
24	2
25	1
26	2
27	3
28	7
29	8
30	4
31	2
32	2
33	2
34	2
35	4
36	8
37	9
38	4
39	3
40	2
41	1
42	2
43	3
44	4
45	9
46	10
47	5
48	3
49	2
50	2
51	2
52	2
53	3
54	5
55	10
56	11
57	5
58	3
59	2
60	2
61	1
62	2
63	2
64	3
65	5
66	11
67	12
68	6
69	4
70	3
71	2
72	2
73	2
74	2
75	3
76	4
77	6
78	12
79	13
80	6
81	4
82	3
83	2
84	2
85	1
86	2
87	2
88	3
89	4
90	6
91	13
92	14
93	7
94	4
95	3

n	a(n)
1	1
2	2
3	2
4	3
5	1
6	3
7	4
8	2
9	2
10	4
11	5
12	2
13	1
14	2
15	5
16	6
17	3
18	2
19	2
20	3
21	6
22	7
23	3
24	2
25	1
26	2
27	3
28	7
29	8
30	4
31	2
32	2
33	2
34	2
35	4
36	8
37	9
38	4
39	3
40	2
41	1
42	2
43	3
44	4
45	9
46	10
47	5
48	3
49	2
50	2
51	2
52	2
53	3
54	5
55	10
56	11
57	5
58	3
59	2
60	2
61	1
62	2
63	2
64	3
65	5
66	11
67	12
68	6
69	4
70	3
71	2
72	2
73	2
74	2
75	3
76	4
77	6
78	12
79	13
80	6
81	4
82	3
83	2
84	2
85	1
86	2
87	2
88	3
89	4
90	6
91	13
92	14
93	7
94	4
95	3

n	a(n)
1	1
2	2
3	2
4	3
5	1
6	3
7	4
8	2
9	2
10	4
11	5
12	2
13	1
14	2
15	5
16	6
17	3
18	2
19	2
20	3
21	6
22	7
23	3
24	2
25	1
26	2
27	3
28	7
29	8
30	4
31	2
32	2
33	2
34	2
35	4
36	8
37	9
38	4
39	3
40	2
41	1
42	2
43	3
44	4
45	9
46	10
47	5
48	3
49	2
50	2
51	2
52	2
53	3
54	5
55	10
56	11
57	5
58	3
59	2
60	2
61	1
62	2
63	2
64	3
65	5
66	11
67	12
68	6
69	4
70	3
71	2
72	2
73	2
74	2
75	3
76	4
77	6
78	12
79	13
80	6
81	4
82	3
83	2
84	2
85	1
86	2
87	2
88	3
89	4
90	6
91	13
92	14
93	7
94	4
95	3