A204004 - cp's OEIS frontend

A204004 Symmetric matrix based on f(i,j) = max{2i+j-2,i+2j-2}, by antidiagonals.

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

[1, 3, 3, 5, 4, 5, 7, 6, 6, 7, 9, 8, 7, 8, 9, 11, 10, 9, 9, 10, 11, 13, 12, 11, 10, 11, 12, 13, 15, 14, 13, 12, 12, 13, 14, 15, 17, 16, 15, 14, 13, 14, 15, 16, 17, 19, 18, 17, 16, 15, 15, 16, 17, 18, 19, 21, 20, 19, 18, 17, 16, 17, 18, 19, 20, 21, 23, 22, 21, 20, 19, 18]

cp's OEIS Frontend

A204004 Symmetric matrix based on f(i,j) = max{2i+j-2,i+2j-2}, by antidiagonals.

Table of values

List of values

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

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

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