A203998 - cp's OEIS frontend

A203998 Symmetric matrix based on f(i,j)=max{i(j+1)-1,j(i+1)-1}, by antidiagonals.

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

[1, 3, 3, 5, 5, 5, 7, 8, 8, 7, 9, 11, 11, 11, 9, 11, 14, 15, 15, 14, 11, 13, 17, 19, 19, 19, 17, 13, 15, 20, 23, 24, 24, 23, 20, 15, 17, 23, 27, 29, 29, 29, 27, 23, 17, 19, 26, 31, 34, 35, 35, 34, 31, 26, 19, 21, 29, 35, 39, 41, 41, 41, 39, 35, 29, 21, 23, 32, 39, 44]

cp's OEIS Frontend

A203998 Symmetric matrix based on f(i,j)=max{i(j+1)-1,j(i+1)-1}, by antidiagonals.

Table of values

List of values

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

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

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