A073813 - cp's OEIS frontend

A073813 Difference between n and largest unrelated number belonging to n, when n runs over composite numbers. For primes and for 4, unrelated set is empty.

n	a(n)
1	0
2	2
3	2
4	3
5	2
6	2
7	2
8	3
9	2
10	2
11	2
12	3
13	2
14	2
15	5
16	2
17	3
18	2
19	2
20	2
21	3
22	2
23	5
24	2
25	2
26	3
27	2
28	2
29	2
30	3
31	2
32	2
33	7
34	2
35	3
36	2
37	2
38	5
39	2
40	3
41	2
42	2
43	2
44	3
45	2
46	5
47	2
48	2
49	3
50	2
51	2
52	2
53	3
54	2
55	7
56	2
57	2
58	3
59	2
60	2
61	5
62	2
63	3
64	2
65	2
66	7
67	2
68	3
69	2
70	5
71	2
72	2
73	3
74	2
75	2
76	2
77	3
78	2
79	2
80	2
81	3
82	2
83	2
84	5
85	2
86	3
87	2
88	7
89	2
90	11
91	2
92	3
93	2
94	5
95	2
96	2
97	3
98	2
99	2
100	7
101	2
102	3
103	2
104	2

[0, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 5, 2, 3, 2, 2, 2, 3, 2, 5, 2, 2, 3, 2, 2, 2, 3, 2, 2, 7, 2, 3, 2, 2, 5, 2, 3, 2, 2, 2, 3, 2, 5, 2, 2, 3, 2, 2, 2, 3, 2, 7, 2, 2, 3, 2, 2, 5, 2, 3, 2, 2, 7, 2, 3, 2, 5, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 5, 2, 3, 2, 7, 2, 11, 2, 3, 2, 5, 2, 2, 3, 2, 2, 7, 2, 3, 2, 2]

cp's OEIS Frontend

A073813 Difference between n and largest unrelated number belonging to n, when n runs over composite numbers. For primes and for 4, unrelated set is empty.

Table of values

List of values

n	a(n)
1	0
2	2
3	2
4	3
5	2
6	2
7	2
8	3
9	2
10	2
11	2
12	3
13	2
14	2
15	5
16	2
17	3
18	2
19	2
20	2
21	3
22	2
23	5
24	2
25	2
26	3
27	2
28	2
29	2
30	3
31	2
32	2
33	7
34	2
35	3
36	2
37	2
38	5
39	2
40	3
41	2
42	2
43	2
44	3
45	2
46	5
47	2
48	2
49	3
50	2
51	2
52	2
53	3
54	2
55	7
56	2
57	2
58	3
59	2
60	2
61	5
62	2
63	3
64	2
65	2
66	7
67	2
68	3
69	2
70	5
71	2
72	2
73	3
74	2
75	2
76	2
77	3
78	2
79	2
80	2
81	3
82	2
83	2
84	5
85	2
86	3
87	2
88	7
89	2
90	11
91	2
92	3
93	2
94	5
95	2
96	2
97	3
98	2
99	2
100	7
101	2
102	3
103	2
104	2

n	a(n)
1	0
2	2
3	2
4	3
5	2
6	2
7	2
8	3
9	2
10	2
11	2
12	3
13	2
14	2
15	5
16	2
17	3
18	2
19	2
20	2
21	3
22	2
23	5
24	2
25	2
26	3
27	2
28	2
29	2
30	3
31	2
32	2
33	7
34	2
35	3
36	2
37	2
38	5
39	2
40	3
41	2
42	2
43	2
44	3
45	2
46	5
47	2
48	2
49	3
50	2
51	2
52	2
53	3
54	2
55	7
56	2
57	2
58	3
59	2
60	2
61	5
62	2
63	3
64	2
65	2
66	7
67	2
68	3
69	2
70	5
71	2
72	2
73	3
74	2
75	2
76	2
77	3
78	2
79	2
80	2
81	3
82	2
83	2
84	5
85	2
86	3
87	2
88	7
89	2
90	11
91	2
92	3
93	2
94	5
95	2
96	2
97	3
98	2
99	2
100	7
101	2
102	3
103	2
104	2

n	a(n)
1	0
2	2
3	2
4	3
5	2
6	2
7	2
8	3
9	2
10	2
11	2
12	3
13	2
14	2
15	5
16	2
17	3
18	2
19	2
20	2
21	3
22	2
23	5
24	2
25	2
26	3
27	2
28	2
29	2
30	3
31	2
32	2
33	7
34	2
35	3
36	2
37	2
38	5
39	2
40	3
41	2
42	2
43	2
44	3
45	2
46	5
47	2
48	2
49	3
50	2
51	2
52	2
53	3
54	2
55	7
56	2
57	2
58	3
59	2
60	2
61	5
62	2
63	3
64	2
65	2
66	7
67	2
68	3
69	2
70	5
71	2
72	2
73	3
74	2
75	2
76	2
77	3
78	2
79	2
80	2
81	3
82	2
83	2
84	5
85	2
86	3
87	2
88	7
89	2
90	11
91	2
92	3
93	2
94	5
95	2
96	2
97	3
98	2
99	2
100	7
101	2
102	3
103	2
104	2