A157449 - cp's OEIS frontend

A157449 Difference between n and the sum of its divisors except 1 and itself.

n	a(n)
2	2
3	3
4	2
5	5
6	1
7	7
8	2
9	6
10	3
11	11
12	-3
13	13
14	5
15	7
16	2
17	17
18	-2
19	19
20	-1
21	11
22	9
23	23
24	-11
25	20
26	11
27	15
28	1
29	29
30	-11
31	31
32	2
33	19
34	15
35	23
36	-18
37	37
38	17
39	23
40	-9
41	41
42	-11
43	43
44	5
45	13
46	21
47	47
48	-27
49	42
50	8
51	31
52	7
53	53
54	-11
55	39
56	-7
57	35
58	27
59	59
60	-47
61	61
62	29
63	23
64	2

[2, 3, 2, 5, 1, 7, 2, 6, 3, 11, -3, 13, 5, 7, 2, 17, -2, 19, -1, 11, 9, 23, -11, 20, 11, 15, 1, 29, -11, 31, 2, 19, 15, 23, -18, 37, 17, 23, -9, 41, -11, 43, 5, 13, 21, 47, -27, 42, 8, 31, 7, 53, -11, 39, -7, 35, 27, 59, -47, 61, 29, 23, 2]

cp's OEIS Frontend

A157449 Difference between n and the sum of its divisors except 1 and itself.

Table of values

List of values

n	a(n)
2	2
3	3
4	2
5	5
6	1
7	7
8	2
9	6
10	3
11	11
12	-3
13	13
14	5
15	7
16	2
17	17
18	-2
19	19
20	-1
21	11
22	9
23	23
24	-11
25	20
26	11
27	15
28	1
29	29
30	-11
31	31
32	2
33	19
34	15
35	23
36	-18
37	37
38	17
39	23
40	-9
41	41
42	-11
43	43
44	5
45	13
46	21
47	47
48	-27
49	42
50	8
51	31
52	7
53	53
54	-11
55	39
56	-7
57	35
58	27
59	59
60	-47
61	61
62	29
63	23
64	2

n	a(n)
2	2
3	3
4	2
5	5
6	1
7	7
8	2
9	6
10	3
11	11
12	-3
13	13
14	5
15	7
16	2
17	17
18	-2
19	19
20	-1
21	11
22	9
23	23
24	-11
25	20
26	11
27	15
28	1
29	29
30	-11
31	31
32	2
33	19
34	15
35	23
36	-18
37	37
38	17
39	23
40	-9
41	41
42	-11
43	43
44	5
45	13
46	21
47	47
48	-27
49	42
50	8
51	31
52	7
53	53
54	-11
55	39
56	-7
57	35
58	27
59	59
60	-47
61	61
62	29
63	23
64	2

n	a(n)
2	2
3	3
4	2
5	5
6	1
7	7
8	2
9	6
10	3
11	11
12	-3
13	13
14	5
15	7
16	2
17	17
18	-2
19	19
20	-1
21	11
22	9
23	23
24	-11
25	20
26	11
27	15
28	1
29	29
30	-11
31	31
32	2
33	19
34	15
35	23
36	-18
37	37
38	17
39	23
40	-9
41	41
42	-11
43	43
44	5
45	13
46	21
47	47
48	-27
49	42
50	8
51	31
52	7
53	53
54	-11
55	39
56	-7
57	35
58	27
59	59
60	-47
61	61
62	29
63	23
64	2