A383748 - cp's OEIS frontend

A383748 a(n) = q is the smallest integer, such that the numbers -1/q, i/q, -i/q with i = sqrt(-1), are three zeros of the polynomial P(A783747(n),z) = Sum_{k=1..r} d(k)*z^(k-1) where d(1) < d(2), ..., < d(r) are the r divisors of A383747(n).

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

[2, 3, 2, 2, 5, 2, 2, 2, 2, 2, 2, 2, 2, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 3, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 3, 2, 2, 2, 3, 2, 11, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 3, 3, 2, 2, 3, 2, 2, 2, 2, 3, 2, 3, 2, 2, 2, 2, 3, 2, 2, 3, 13, 2, 3, 2, 2, 2, 2, 3, 2, 2]

cp's OEIS Frontend

A383748 a(n) = q is the smallest integer, such that the numbers -1/q, i/q, -i/q with i = sqrt(-1), are three zeros of the polynomial P(A783747(n),z) = Sum_{k=1..r} d(k)*z^(k-1) where d(1) < d(2), ..., < d(r) are the r divisors of A383747(n).

Table of values

List of values

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

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

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