A341317 - cp's OEIS frontend

A341317 Array read by antidiagonals of products in the semigroup S = {(0,0), (i,j): i >= j >= 1} (see Comments for precise definition).

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	0
6	0
7	2
8	2
9	0
10	0
11	3
12	7
13	3
14	0
15	0
16	4
17	8
18	8
19	4
20	0
21	0
22	5
23	16
24	10
25	16
26	5
27	0
28	0
29	6
30	17
31	17
32	17
33	17
34	6
35	0
36	0
37	7
38	18
39	19
40	37
41	19
42	18
43	7
44	0
45	0
46	8
47	29
48	21
49	38
50	38
51	21
52	29
53	8
54	0
55	0
56	9
57	30
58	30
59	39
60	40
61	39
62	30
63	30
64	9
65	0
66	0
67	10
68	31
69	32
70	67
71	42
72	42
73	67
74	32
75	31
76	10
77	0

[0, 0, 0, 0, 1, 0, 0, 2, 2, 0, 0, 3, 7, 3, 0, 0, 4, 8, 8, 4, 0, 0, 5, 16, 10, 16, 5, 0, 0, 6, 17, 17, 17, 17, 6, 0, 0, 7, 18, 19, 37, 19, 18, 7, 0, 0, 8, 29, 21, 38, 38, 21, 29, 8, 0, 0, 9, 30, 30, 39, 40, 39, 30, 30, 9, 0, 0, 10, 31, 32, 67, 42, 42, 67, 32, 31, 10, 0]

cp's OEIS Frontend

A341317 Array read by antidiagonals of products in the semigroup S = {(0,0), (i,j): i >= j >= 1} (see Comments for precise definition).

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	0
6	0
7	2
8	2
9	0
10	0
11	3
12	7
13	3
14	0
15	0
16	4
17	8
18	8
19	4
20	0
21	0
22	5
23	16
24	10
25	16
26	5
27	0
28	0
29	6
30	17
31	17
32	17
33	17
34	6
35	0
36	0
37	7
38	18
39	19
40	37
41	19
42	18
43	7
44	0
45	0
46	8
47	29
48	21
49	38
50	38
51	21
52	29
53	8
54	0
55	0
56	9
57	30
58	30
59	39
60	40
61	39
62	30
63	30
64	9
65	0
66	0
67	10
68	31
69	32
70	67
71	42
72	42
73	67
74	32
75	31
76	10
77	0

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	0
6	0
7	2
8	2
9	0
10	0
11	3
12	7
13	3
14	0
15	0
16	4
17	8
18	8
19	4
20	0
21	0
22	5
23	16
24	10
25	16
26	5
27	0
28	0
29	6
30	17
31	17
32	17
33	17
34	6
35	0
36	0
37	7
38	18
39	19
40	37
41	19
42	18
43	7
44	0
45	0
46	8
47	29
48	21
49	38
50	38
51	21
52	29
53	8
54	0
55	0
56	9
57	30
58	30
59	39
60	40
61	39
62	30
63	30
64	9
65	0
66	0
67	10
68	31
69	32
70	67
71	42
72	42
73	67
74	32
75	31
76	10
77	0

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	0
6	0
7	2
8	2
9	0
10	0
11	3
12	7
13	3
14	0
15	0
16	4
17	8
18	8
19	4
20	0
21	0
22	5
23	16
24	10
25	16
26	5
27	0
28	0
29	6
30	17
31	17
32	17
33	17
34	6
35	0
36	0
37	7
38	18
39	19
40	37
41	19
42	18
43	7
44	0
45	0
46	8
47	29
48	21
49	38
50	38
51	21
52	29
53	8
54	0
55	0
56	9
57	30
58	30
59	39
60	40
61	39
62	30
63	30
64	9
65	0
66	0
67	10
68	31
69	32
70	67
71	42
72	42
73	67
74	32
75	31
76	10
77	0