A081454 - cp's OEIS frontend

A081454 Triangle read by rows in which the n-th row contains n distinct numbers whose product is a square, which is minimal over all choices for n distinct numbers.

n	a(n)
1	1
2	1
3	4
4	1
5	2
6	8
7	1
8	2
9	3
10	6
11	1
12	2
13	3
14	4
15	6
16	1
17	2
18	3
19	4
20	6
21	9
22	1
23	2
24	3
25	5
26	6
27	8
28	10
29	1
30	2
31	3
32	4
33	5
34	6
35	8
36	10
37	1
38	2
39	3
40	4
41	5
42	6
43	8
44	9
45	10
46	1
47	2
48	3
49	4
50	5
51	6
52	7
53	9
54	10
55	14
56	1
57	2
58	3
59	4
60	5
61	7
62	8
63	9
64	10
65	12
66	14
67	1
68	2
69	3
70	4
71	5
72	6
73	7
74	8
75	9
76	12
77	14
78	15
79	1
80	2
81	3
82	4
83	5
84	6
85	7
86	8
87	9
88	10
89	11
90	14
91	22

[1, 1, 4, 1, 2, 8, 1, 2, 3, 6, 1, 2, 3, 4, 6, 1, 2, 3, 4, 6, 9, 1, 2, 3, 5, 6, 8, 10, 1, 2, 3, 4, 5, 6, 8, 10, 1, 2, 3, 4, 5, 6, 8, 9, 10, 1, 2, 3, 4, 5, 6, 7, 9, 10, 14, 1, 2, 3, 4, 5, 7, 8, 9, 10, 12, 14, 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 15, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 22]

cp's OEIS Frontend

A081454 Triangle read by rows in which the n-th row contains n distinct numbers whose product is a square, which is minimal over all choices for n distinct numbers.

Table of values

List of values

n	a(n)
1	1
2	1
3	4
4	1
5	2
6	8
7	1
8	2
9	3
10	6
11	1
12	2
13	3
14	4
15	6
16	1
17	2
18	3
19	4
20	6
21	9
22	1
23	2
24	3
25	5
26	6
27	8
28	10
29	1
30	2
31	3
32	4
33	5
34	6
35	8
36	10
37	1
38	2
39	3
40	4
41	5
42	6
43	8
44	9
45	10
46	1
47	2
48	3
49	4
50	5
51	6
52	7
53	9
54	10
55	14
56	1
57	2
58	3
59	4
60	5
61	7
62	8
63	9
64	10
65	12
66	14
67	1
68	2
69	3
70	4
71	5
72	6
73	7
74	8
75	9
76	12
77	14
78	15
79	1
80	2
81	3
82	4
83	5
84	6
85	7
86	8
87	9
88	10
89	11
90	14
91	22

n	a(n)
1	1
2	1
3	4
4	1
5	2
6	8
7	1
8	2
9	3
10	6
11	1
12	2
13	3
14	4
15	6
16	1
17	2
18	3
19	4
20	6
21	9
22	1
23	2
24	3
25	5
26	6
27	8
28	10
29	1
30	2
31	3
32	4
33	5
34	6
35	8
36	10
37	1
38	2
39	3
40	4
41	5
42	6
43	8
44	9
45	10
46	1
47	2
48	3
49	4
50	5
51	6
52	7
53	9
54	10
55	14
56	1
57	2
58	3
59	4
60	5
61	7
62	8
63	9
64	10
65	12
66	14
67	1
68	2
69	3
70	4
71	5
72	6
73	7
74	8
75	9
76	12
77	14
78	15
79	1
80	2
81	3
82	4
83	5
84	6
85	7
86	8
87	9
88	10
89	11
90	14
91	22

n	a(n)
1	1
2	1
3	4
4	1
5	2
6	8
7	1
8	2
9	3
10	6
11	1
12	2
13	3
14	4
15	6
16	1
17	2
18	3
19	4
20	6
21	9
22	1
23	2
24	3
25	5
26	6
27	8
28	10
29	1
30	2
31	3
32	4
33	5
34	6
35	8
36	10
37	1
38	2
39	3
40	4
41	5
42	6
43	8
44	9
45	10
46	1
47	2
48	3
49	4
50	5
51	6
52	7
53	9
54	10
55	14
56	1
57	2
58	3
59	4
60	5
61	7
62	8
63	9
64	10
65	12
66	14
67	1
68	2
69	3
70	4
71	5
72	6
73	7
74	8
75	9
76	12
77	14
78	15
79	1
80	2
81	3
82	4
83	5
84	6
85	7
86	8
87	9
88	10
89	11
90	14
91	22