A188794 - cp's OEIS frontend

A188794 a(n) is the smallest integer k >= 2 such that the number of divisors d>1 of n-k with k|(n-d) equals A188550(n).

n	a(n)
4	2
5	2
6	2
7	2
8	2
9	3
10	2
11	2
12	2
13	2
14	2
15	3
16	2
17	2
18	2
19	3
20	2
21	3
22	2
23	2
24	2
25	5
26	2
27	3
28	4
29	2
30	2
31	3
32	2
33	3
34	2
35	5
36	4
37	2
38	2
39	3
40	4
41	2
42	2
43	3
44	2
45	3
46	2
47	2
48	3
49	7
50	2
51	3
52	4
53	2
54	2
55	5
56	2
57	3
58	2
59	3
60	4
61	2
62	2
63	3
64	4
65	5
66	2
67	2
68	4
69	3
70	2
71	2
72	2
73	3
74	2
75	3
76	4
77	2
78	6
79	2
80	2
81	3
82	2
83	3
84	4
85	5
86	2
87	3
88	4
89	2
90	2
91	7
92	2
93	3
94	4
95	5
96	6
97	2
98	2
99	3
100	4
101	2
102	2
103	3
104	8
105	5
106	2
107	2
108	3
109	4
110	2
111	3
112	2
113	3
114	2

[2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 3, 2, 2, 2, 5, 2, 3, 4, 2, 2, 3, 2, 3, 2, 5, 4, 2, 2, 3, 4, 2, 2, 3, 2, 3, 2, 2, 3, 7, 2, 3, 4, 2, 2, 5, 2, 3, 2, 3, 4, 2, 2, 3, 4, 5, 2, 2, 4, 3, 2, 2, 2, 3, 2, 3, 4, 2, 6, 2, 2, 3, 2, 3, 4, 5, 2, 3, 4, 2, 2, 7, 2, 3, 4, 5, 6, 2, 2, 3, 4, 2, 2, 3, 8, 5, 2, 2, 3, 4, 2, 3, 2, 3, 2]

cp's OEIS Frontend

A188794 a(n) is the smallest integer k >= 2 such that the number of divisors d>1 of n-k with k|(n-d) equals A188550(n).

Table of values

List of values

n	a(n)
4	2
5	2
6	2
7	2
8	2
9	3
10	2
11	2
12	2
13	2
14	2
15	3
16	2
17	2
18	2
19	3
20	2
21	3
22	2
23	2
24	2
25	5
26	2
27	3
28	4
29	2
30	2
31	3
32	2
33	3
34	2
35	5
36	4
37	2
38	2
39	3
40	4
41	2
42	2
43	3
44	2
45	3
46	2
47	2
48	3
49	7
50	2
51	3
52	4
53	2
54	2
55	5
56	2
57	3
58	2
59	3
60	4
61	2
62	2
63	3
64	4
65	5
66	2
67	2
68	4
69	3
70	2
71	2
72	2
73	3
74	2
75	3
76	4
77	2
78	6
79	2
80	2
81	3
82	2
83	3
84	4
85	5
86	2
87	3
88	4
89	2
90	2
91	7
92	2
93	3
94	4
95	5
96	6
97	2
98	2
99	3
100	4
101	2
102	2
103	3
104	8
105	5
106	2
107	2
108	3
109	4
110	2
111	3
112	2
113	3
114	2

n	a(n)
4	2
5	2
6	2
7	2
8	2
9	3
10	2
11	2
12	2
13	2
14	2
15	3
16	2
17	2
18	2
19	3
20	2
21	3
22	2
23	2
24	2
25	5
26	2
27	3
28	4
29	2
30	2
31	3
32	2
33	3
34	2
35	5
36	4
37	2
38	2
39	3
40	4
41	2
42	2
43	3
44	2
45	3
46	2
47	2
48	3
49	7
50	2
51	3
52	4
53	2
54	2
55	5
56	2
57	3
58	2
59	3
60	4
61	2
62	2
63	3
64	4
65	5
66	2
67	2
68	4
69	3
70	2
71	2
72	2
73	3
74	2
75	3
76	4
77	2
78	6
79	2
80	2
81	3
82	2
83	3
84	4
85	5
86	2
87	3
88	4
89	2
90	2
91	7
92	2
93	3
94	4
95	5
96	6
97	2
98	2
99	3
100	4
101	2
102	2
103	3
104	8
105	5
106	2
107	2
108	3
109	4
110	2
111	3
112	2
113	3
114	2

n	a(n)
4	2
5	2
6	2
7	2
8	2
9	3
10	2
11	2
12	2
13	2
14	2
15	3
16	2
17	2
18	2
19	3
20	2
21	3
22	2
23	2
24	2
25	5
26	2
27	3
28	4
29	2
30	2
31	3
32	2
33	3
34	2
35	5
36	4
37	2
38	2
39	3
40	4
41	2
42	2
43	3
44	2
45	3
46	2
47	2
48	3
49	7
50	2
51	3
52	4
53	2
54	2
55	5
56	2
57	3
58	2
59	3
60	4
61	2
62	2
63	3
64	4
65	5
66	2
67	2
68	4
69	3
70	2
71	2
72	2
73	3
74	2
75	3
76	4
77	2
78	6
79	2
80	2
81	3
82	2
83	3
84	4
85	5
86	2
87	3
88	4
89	2
90	2
91	7
92	2
93	3
94	4
95	5
96	6
97	2
98	2
99	3
100	4
101	2
102	2
103	3
104	8
105	5
106	2
107	2
108	3
109	4
110	2
111	3
112	2
113	3
114	2