A202970 - cp's OEIS frontend

A202970 Symmetric matrix based on A001911, by antidiagonals.

n	a(n)
1	1
2	3
3	3
4	6
5	10
6	6
7	11
8	21
9	21
10	11
11	19
12	39
13	46
14	39
15	19
16	32
17	68
18	87
19	87
20	68
21	32
22	53
23	115
24	153
25	167
26	153
27	115
28	53
29	87
30	191
31	260
32	296
33	296
34	260
35	191
36	87
37	142
38	314
39	433
40	505
41	528
42	505
43	433
44	314
45	142
46	231
47	513
48	713
49	843
50	904
51	904
52	843
53	713
54	513
55	231
56	375
57	835

[1, 3, 3, 6, 10, 6, 11, 21, 21, 11, 19, 39, 46, 39, 19, 32, 68, 87, 87, 68, 32, 53, 115, 153, 167, 153, 115, 53, 87, 191, 260, 296, 296, 260, 191, 87, 142, 314, 433, 505, 528, 505, 433, 314, 142, 231, 513, 713, 843, 904, 904, 843, 713, 513, 231, 375, 835]

cp's OEIS Frontend

A202970 Symmetric matrix based on A001911, by antidiagonals.

Table of values

List of values

n	a(n)
1	1
2	3
3	3
4	6
5	10
6	6
7	11
8	21
9	21
10	11
11	19
12	39
13	46
14	39
15	19
16	32
17	68
18	87
19	87
20	68
21	32
22	53
23	115
24	153
25	167
26	153
27	115
28	53
29	87
30	191
31	260
32	296
33	296
34	260
35	191
36	87
37	142
38	314
39	433
40	505
41	528
42	505
43	433
44	314
45	142
46	231
47	513
48	713
49	843
50	904
51	904
52	843
53	713
54	513
55	231
56	375
57	835

n	a(n)
1	1
2	3
3	3
4	6
5	10
6	6
7	11
8	21
9	21
10	11
11	19
12	39
13	46
14	39
15	19
16	32
17	68
18	87
19	87
20	68
21	32
22	53
23	115
24	153
25	167
26	153
27	115
28	53
29	87
30	191
31	260
32	296
33	296
34	260
35	191
36	87
37	142
38	314
39	433
40	505
41	528
42	505
43	433
44	314
45	142
46	231
47	513
48	713
49	843
50	904
51	904
52	843
53	713
54	513
55	231
56	375
57	835

n	a(n)
1	1
2	3
3	3
4	6
5	10
6	6
7	11
8	21
9	21
10	11
11	19
12	39
13	46
14	39
15	19
16	32
17	68
18	87
19	87
20	68
21	32
22	53
23	115
24	153
25	167
26	153
27	115
28	53
29	87
30	191
31	260
32	296
33	296
34	260
35	191
36	87
37	142
38	314
39	433
40	505
41	528
42	505
43	433
44	314
45	142
46	231
47	513
48	713
49	843
50	904
51	904
52	843
53	713
54	513
55	231
56	375
57	835