A202674 - cp's OEIS frontend

A202674 Symmetric matrix based on (1,3,5,7,9,...), by antidiagonals.

n	a(n)
1	1
2	3
3	3
4	5
5	10
6	5
7	7
8	18
9	18
10	7
11	9
12	26
13	35
14	26
15	9
16	11
17	34
18	53
19	53
20	34
21	11
22	13
23	42
24	71
25	84
26	71
27	42
28	13
29	15
30	50
31	89
32	116
33	116
34	89
35	50
36	15
37	17
38	58
39	107
40	148
41	165
42	148
43	107
44	58
45	17
46	19
47	66
48	125
49	180
50	215
51	215
52	180
53	125
54	66
55	19
56	21
57	74
58	143
59	212
60	265
61	286
62	265
63	212

[1, 3, 3, 5, 10, 5, 7, 18, 18, 7, 9, 26, 35, 26, 9, 11, 34, 53, 53, 34, 11, 13, 42, 71, 84, 71, 42, 13, 15, 50, 89, 116, 116, 89, 50, 15, 17, 58, 107, 148, 165, 148, 107, 58, 17, 19, 66, 125, 180, 215, 215, 180, 125, 66, 19, 21, 74, 143, 212, 265, 286, 265, 212]

cp's OEIS Frontend

A202674 Symmetric matrix based on (1,3,5,7,9,...), by antidiagonals.

Table of values

List of values

n	a(n)
1	1
2	3
3	3
4	5
5	10
6	5
7	7
8	18
9	18
10	7
11	9
12	26
13	35
14	26
15	9
16	11
17	34
18	53
19	53
20	34
21	11
22	13
23	42
24	71
25	84
26	71
27	42
28	13
29	15
30	50
31	89
32	116
33	116
34	89
35	50
36	15
37	17
38	58
39	107
40	148
41	165
42	148
43	107
44	58
45	17
46	19
47	66
48	125
49	180
50	215
51	215
52	180
53	125
54	66
55	19
56	21
57	74
58	143
59	212
60	265
61	286
62	265
63	212

n	a(n)
1	1
2	3
3	3
4	5
5	10
6	5
7	7
8	18
9	18
10	7
11	9
12	26
13	35
14	26
15	9
16	11
17	34
18	53
19	53
20	34
21	11
22	13
23	42
24	71
25	84
26	71
27	42
28	13
29	15
30	50
31	89
32	116
33	116
34	89
35	50
36	15
37	17
38	58
39	107
40	148
41	165
42	148
43	107
44	58
45	17
46	19
47	66
48	125
49	180
50	215
51	215
52	180
53	125
54	66
55	19
56	21
57	74
58	143
59	212
60	265
61	286
62	265
63	212

n	a(n)
1	1
2	3
3	3
4	5
5	10
6	5
7	7
8	18
9	18
10	7
11	9
12	26
13	35
14	26
15	9
16	11
17	34
18	53
19	53
20	34
21	11
22	13
23	42
24	71
25	84
26	71
27	42
28	13
29	15
30	50
31	89
32	116
33	116
34	89
35	50
36	15
37	17
38	58
39	107
40	148
41	165
42	148
43	107
44	58
45	17
46	19
47	66
48	125
49	180
50	215
51	215
52	180
53	125
54	66
55	19
56	21
57	74
58	143
59	212
60	265
61	286
62	265
63	212