A371472 - cp's OEIS frontend

A371472 Least positive number k such that binomial(k^2,k) is divisible by n^2.

n	a(n)
1	1
2	3
3	8
4	6
5	9
6	8
7	10
8	23
9	16
10	16
11	16
12	14
13	23
14	10
15	9
16	23
17	45
18	16
19	27
20	16
21	34
22	16
23	33
24	23
25	94
26	23
27	105
28	20
29	77
30	16
31	54
32	91
33	16
34	45
35	19
36	16
37	83
38	27
39	23
40	30
41	58
42	34
43	114
44	16
45	16
46	40
47	133
48	23
49	130
50	94
51	45
52	23
53	75
54	105
55	16
56	38
57	27
58	77
59	145
60	16
61	106
62	54
63	47
64	91
65	49
66	16
67	190
68	45
69	80
70	19
71	123
72	47
73	283
74	83
75	94
76	27
77	40
78	23
79	137

[1, 3, 8, 6, 9, 8, 10, 23, 16, 16, 16, 14, 23, 10, 9, 23, 45, 16, 27, 16, 34, 16, 33, 23, 94, 23, 105, 20, 77, 16, 54, 91, 16, 45, 19, 16, 83, 27, 23, 30, 58, 34, 114, 16, 16, 40, 133, 23, 130, 94, 45, 23, 75, 105, 16, 38, 27, 77, 145, 16, 106, 54, 47, 91, 49, 16, 190, 45, 80, 19, 123, 47, 283, 83, 94, 27, 40, 23, 137]

cp's OEIS Frontend

A371472 Least positive number k such that binomial(k^2,k) is divisible by n^2.

Table of values

List of values

n	a(n)
1	1
2	3
3	8
4	6
5	9
6	8
7	10
8	23
9	16
10	16
11	16
12	14
13	23
14	10
15	9
16	23
17	45
18	16
19	27
20	16
21	34
22	16
23	33
24	23
25	94
26	23
27	105
28	20
29	77
30	16
31	54
32	91
33	16
34	45
35	19
36	16
37	83
38	27
39	23
40	30
41	58
42	34
43	114
44	16
45	16
46	40
47	133
48	23
49	130
50	94
51	45
52	23
53	75
54	105
55	16
56	38
57	27
58	77
59	145
60	16
61	106
62	54
63	47
64	91
65	49
66	16
67	190
68	45
69	80
70	19
71	123
72	47
73	283
74	83
75	94
76	27
77	40
78	23
79	137

n	a(n)
1	1
2	3
3	8
4	6
5	9
6	8
7	10
8	23
9	16
10	16
11	16
12	14
13	23
14	10
15	9
16	23
17	45
18	16
19	27
20	16
21	34
22	16
23	33
24	23
25	94
26	23
27	105
28	20
29	77
30	16
31	54
32	91
33	16
34	45
35	19
36	16
37	83
38	27
39	23
40	30
41	58
42	34
43	114
44	16
45	16
46	40
47	133
48	23
49	130
50	94
51	45
52	23
53	75
54	105
55	16
56	38
57	27
58	77
59	145
60	16
61	106
62	54
63	47
64	91
65	49
66	16
67	190
68	45
69	80
70	19
71	123
72	47
73	283
74	83
75	94
76	27
77	40
78	23
79	137

n	a(n)
1	1
2	3
3	8
4	6
5	9
6	8
7	10
8	23
9	16
10	16
11	16
12	14
13	23
14	10
15	9
16	23
17	45
18	16
19	27
20	16
21	34
22	16
23	33
24	23
25	94
26	23
27	105
28	20
29	77
30	16
31	54
32	91
33	16
34	45
35	19
36	16
37	83
38	27
39	23
40	30
41	58
42	34
43	114
44	16
45	16
46	40
47	133
48	23
49	130
50	94
51	45
52	23
53	75
54	105
55	16
56	38
57	27
58	77
59	145
60	16
61	106
62	54
63	47
64	91
65	49
66	16
67	190
68	45
69	80
70	19
71	123
72	47
73	283
74	83
75	94
76	27
77	40
78	23
79	137