A080063 - cp's OEIS frontend

A080063 a(n) = n mod (spf(n)+1), where spf(n) is the smallest prime dividing n (A020639).

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

[1, 2, 3, 1, 5, 0, 7, 2, 1, 1, 11, 0, 13, 2, 3, 1, 17, 0, 19, 2, 1, 1, 23, 0, 1, 2, 3, 1, 29, 0, 31, 2, 1, 1, 5, 0, 37, 2, 3, 1, 41, 0, 43, 2, 1, 1, 47, 0, 1, 2, 3, 1, 53, 0, 1, 2, 1, 1, 59, 0, 61, 2, 3, 1, 5, 0, 67, 2, 1, 1, 71, 0, 73, 2, 3, 1, 5, 0, 79, 2, 1, 1, 83, 0, 1, 2, 3, 1, 89, 0, 3, 2, 1, 1, 5, 0]

cp's OEIS Frontend

A080063 a(n) = n mod (spf(n)+1), where spf(n) is the smallest prime dividing n (A020639).

Table of values

List of values

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

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

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