A089086 - cp's OEIS frontend

A089086 Greatest common divisor of n^2-5 and n^2+5.

n	a(n)
0	5
1	2
2	1
3	2
4	1
5	10
6	1
7	2
8	1
9	2
10	5
11	2
12	1
13	2
14	1
15	10
16	1
17	2
18	1
19	2
20	5
21	2
22	1
23	2
24	1
25	10
26	1
27	2
28	1
29	2
30	5
31	2
32	1
33	2
34	1
35	10
36	1
37	2
38	1
39	2
40	5
41	2
42	1
43	2
44	1
45	10
46	1
47	2
48	1
49	2
50	5
51	2
52	1
53	2
54	1
55	10
56	1
57	2
58	1
59	2
60	5
61	2
62	1
63	2
64	1
65	10
66	1
67	2
68	1
69	2
70	5
71	2
72	1
73	2
74	1
75	10
76	1
77	2
78	1
79	2
80	5
81	2
82	1
83	2
84	1
85	10
86	1
87	2
88	1
89	2
90	5
91	2
92	1
93	2
94	1
95	10
96	1
97	2
98	1
99	2
100	5

[5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5, 2, 1, 2, 1, 10, 1, 2, 1, 2, 5]

cp's OEIS Frontend

A089086 Greatest common divisor of n^2-5 and n^2+5.

Table of values

List of values

n	a(n)
0	5
1	2
2	1
3	2
4	1
5	10
6	1
7	2
8	1
9	2
10	5
11	2
12	1
13	2
14	1
15	10
16	1
17	2
18	1
19	2
20	5
21	2
22	1
23	2
24	1
25	10
26	1
27	2
28	1
29	2
30	5
31	2
32	1
33	2
34	1
35	10
36	1
37	2
38	1
39	2
40	5
41	2
42	1
43	2
44	1
45	10
46	1
47	2
48	1
49	2
50	5
51	2
52	1
53	2
54	1
55	10
56	1
57	2
58	1
59	2
60	5
61	2
62	1
63	2
64	1
65	10
66	1
67	2
68	1
69	2
70	5
71	2
72	1
73	2
74	1
75	10
76	1
77	2
78	1
79	2
80	5
81	2
82	1
83	2
84	1
85	10
86	1
87	2
88	1
89	2
90	5
91	2
92	1
93	2
94	1
95	10
96	1
97	2
98	1
99	2
100	5

n	a(n)
0	5
1	2
2	1
3	2
4	1
5	10
6	1
7	2
8	1
9	2
10	5
11	2
12	1
13	2
14	1
15	10
16	1
17	2
18	1
19	2
20	5
21	2
22	1
23	2
24	1
25	10
26	1
27	2
28	1
29	2
30	5
31	2
32	1
33	2
34	1
35	10
36	1
37	2
38	1
39	2
40	5
41	2
42	1
43	2
44	1
45	10
46	1
47	2
48	1
49	2
50	5
51	2
52	1
53	2
54	1
55	10
56	1
57	2
58	1
59	2
60	5
61	2
62	1
63	2
64	1
65	10
66	1
67	2
68	1
69	2
70	5
71	2
72	1
73	2
74	1
75	10
76	1
77	2
78	1
79	2
80	5
81	2
82	1
83	2
84	1
85	10
86	1
87	2
88	1
89	2
90	5
91	2
92	1
93	2
94	1
95	10
96	1
97	2
98	1
99	2
100	5

n	a(n)
0	5
1	2
2	1
3	2
4	1
5	10
6	1
7	2
8	1
9	2
10	5
11	2
12	1
13	2
14	1
15	10
16	1
17	2
18	1
19	2
20	5
21	2
22	1
23	2
24	1
25	10
26	1
27	2
28	1
29	2
30	5
31	2
32	1
33	2
34	1
35	10
36	1
37	2
38	1
39	2
40	5
41	2
42	1
43	2
44	1
45	10
46	1
47	2
48	1
49	2
50	5
51	2
52	1
53	2
54	1
55	10
56	1
57	2
58	1
59	2
60	5
61	2
62	1
63	2
64	1
65	10
66	1
67	2
68	1
69	2
70	5
71	2
72	1
73	2
74	1
75	10
76	1
77	2
78	1
79	2
80	5
81	2
82	1
83	2
84	1
85	10
86	1
87	2
88	1
89	2
90	5
91	2
92	1
93	2
94	1
95	10
96	1
97	2
98	1
99	2
100	5