A083506 - cp's OEIS frontend

A083506 n-th row of the following triangle contains all distinct numbers that can be obtained as the product of two distinct numbers chosen from 1 to n. (n>1). Sequence contains the triangle read by rows.

n	a(n)
2	2
3	2
4	3
5	6
6	2
7	3
8	4
9	6
10	8
11	12
12	2
13	3
14	4
15	5
16	6
17	8
18	10
19	12
20	15
21	20
22	2
23	3
24	4
25	5
26	6
27	8
28	10
29	12
30	15
31	18
32	20
33	24
34	30
35	2
36	3
37	4
38	5
39	6
40	7
41	8
42	10
43	12
44	14
45	15
46	18
47	20
48	21
49	24
50	28
51	30
52	35
53	42
54	2
55	3
56	4
57	5
58	6
59	7
60	8
61	10
62	12
63	14
64	15
65	16
66	18
67	20
68	21
69	24
70	28
71	30
72	32
73	35
74	40
75	42
76	48
77	56
78	2
79	3
80	4
81	5
82	6
83	7
84	8
85	9

[2, 2, 3, 6, 2, 3, 4, 6, 8, 12, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 2, 3, 4, 5, 6, 8, 10, 12, 15, 18, 20, 24, 30, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 42, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 2, 3, 4, 5, 6, 7, 8, 9]

cp's OEIS Frontend

A083506 n-th row of the following triangle contains all distinct numbers that can be obtained as the product of two distinct numbers chosen from 1 to n. (n>1). Sequence contains the triangle read by rows.

Table of values

List of values

n	a(n)
2	2
3	2
4	3
5	6
6	2
7	3
8	4
9	6
10	8
11	12
12	2
13	3
14	4
15	5
16	6
17	8
18	10
19	12
20	15
21	20
22	2
23	3
24	4
25	5
26	6
27	8
28	10
29	12
30	15
31	18
32	20
33	24
34	30
35	2
36	3
37	4
38	5
39	6
40	7
41	8
42	10
43	12
44	14
45	15
46	18
47	20
48	21
49	24
50	28
51	30
52	35
53	42
54	2
55	3
56	4
57	5
58	6
59	7
60	8
61	10
62	12
63	14
64	15
65	16
66	18
67	20
68	21
69	24
70	28
71	30
72	32
73	35
74	40
75	42
76	48
77	56
78	2
79	3
80	4
81	5
82	6
83	7
84	8
85	9

n	a(n)
2	2
3	2
4	3
5	6
6	2
7	3
8	4
9	6
10	8
11	12
12	2
13	3
14	4
15	5
16	6
17	8
18	10
19	12
20	15
21	20
22	2
23	3
24	4
25	5
26	6
27	8
28	10
29	12
30	15
31	18
32	20
33	24
34	30
35	2
36	3
37	4
38	5
39	6
40	7
41	8
42	10
43	12
44	14
45	15
46	18
47	20
48	21
49	24
50	28
51	30
52	35
53	42
54	2
55	3
56	4
57	5
58	6
59	7
60	8
61	10
62	12
63	14
64	15
65	16
66	18
67	20
68	21
69	24
70	28
71	30
72	32
73	35
74	40
75	42
76	48
77	56
78	2
79	3
80	4
81	5
82	6
83	7
84	8
85	9

n	a(n)
2	2
3	2
4	3
5	6
6	2
7	3
8	4
9	6
10	8
11	12
12	2
13	3
14	4
15	5
16	6
17	8
18	10
19	12
20	15
21	20
22	2
23	3
24	4
25	5
26	6
27	8
28	10
29	12
30	15
31	18
32	20
33	24
34	30
35	2
36	3
37	4
38	5
39	6
40	7
41	8
42	10
43	12
44	14
45	15
46	18
47	20
48	21
49	24
50	28
51	30
52	35
53	42
54	2
55	3
56	4
57	5
58	6
59	7
60	8
61	10
62	12
63	14
64	15
65	16
66	18
67	20
68	21
69	24
70	28
71	30
72	32
73	35
74	40
75	42
76	48
77	56
78	2
79	3
80	4
81	5
82	6
83	7
84	8
85	9