A341318 - cp's OEIS frontend

A341318 Lower triangular table of products in the semigroup S = {(0,0), (i,j): i >= j >= 1} (see Comments for precise definition), read by rows.

n	a(n)
0	0
1	0
2	1
3	0
4	2
5	7
6	0
7	3
8	8
9	10
10	0
11	4
12	16
13	17
14	37
15	0
16	5
17	17
18	19
19	38
20	40
21	0
22	6
23	18
24	21
25	39
26	42
27	45
28	0
29	7
30	29
31	30
32	67
33	68
34	69
35	121
36	0
37	8
38	30
39	32
40	68
41	70
42	72
43	122
44	124
45	0
46	9
47	31
48	34
49	69
50	72
51	75
52	123
53	126
54	129
55	0
56	10
57	32
58	36
59	70
60	74
61	78
62	124
63	128
64	132
65	136
66	0
67	11
68	46
69	47
70	106
71	107
72	108
73	191
74	192
75	193
76	194
77	301

[0, 0, 1, 0, 2, 7, 0, 3, 8, 10, 0, 4, 16, 17, 37, 0, 5, 17, 19, 38, 40, 0, 6, 18, 21, 39, 42, 45, 0, 7, 29, 30, 67, 68, 69, 121, 0, 8, 30, 32, 68, 70, 72, 122, 124, 0, 9, 31, 34, 69, 72, 75, 123, 126, 129, 0, 10, 32, 36, 70, 74, 78, 124, 128, 132, 136, 0, 11, 46, 47, 106, 107, 108, 191, 192, 193, 194, 301]

cp's OEIS Frontend

A341318 Lower triangular table of products in the semigroup S = {(0,0), (i,j): i >= j >= 1} (see Comments for precise definition), read by rows.

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	0
4	2
5	7
6	0
7	3
8	8
9	10
10	0
11	4
12	16
13	17
14	37
15	0
16	5
17	17
18	19
19	38
20	40
21	0
22	6
23	18
24	21
25	39
26	42
27	45
28	0
29	7
30	29
31	30
32	67
33	68
34	69
35	121
36	0
37	8
38	30
39	32
40	68
41	70
42	72
43	122
44	124
45	0
46	9
47	31
48	34
49	69
50	72
51	75
52	123
53	126
54	129
55	0
56	10
57	32
58	36
59	70
60	74
61	78
62	124
63	128
64	132
65	136
66	0
67	11
68	46
69	47
70	106
71	107
72	108
73	191
74	192
75	193
76	194
77	301

n	a(n)
0	0
1	0
2	1
3	0
4	2
5	7
6	0
7	3
8	8
9	10
10	0
11	4
12	16
13	17
14	37
15	0
16	5
17	17
18	19
19	38
20	40
21	0
22	6
23	18
24	21
25	39
26	42
27	45
28	0
29	7
30	29
31	30
32	67
33	68
34	69
35	121
36	0
37	8
38	30
39	32
40	68
41	70
42	72
43	122
44	124
45	0
46	9
47	31
48	34
49	69
50	72
51	75
52	123
53	126
54	129
55	0
56	10
57	32
58	36
59	70
60	74
61	78
62	124
63	128
64	132
65	136
66	0
67	11
68	46
69	47
70	106
71	107
72	108
73	191
74	192
75	193
76	194
77	301

n	a(n)
0	0
1	0
2	1
3	0
4	2
5	7
6	0
7	3
8	8
9	10
10	0
11	4
12	16
13	17
14	37
15	0
16	5
17	17
18	19
19	38
20	40
21	0
22	6
23	18
24	21
25	39
26	42
27	45
28	0
29	7
30	29
31	30
32	67
33	68
34	69
35	121
36	0
37	8
38	30
39	32
40	68
41	70
42	72
43	122
44	124
45	0
46	9
47	31
48	34
49	69
50	72
51	75
52	123
53	126
54	129
55	0
56	10
57	32
58	36
59	70
60	74
61	78
62	124
63	128
64	132
65	136
66	0
67	11
68	46
69	47
70	106
71	107
72	108
73	191
74	192
75	193
76	194
77	301