A379229 - cp's OEIS frontend

A379229 Difference A003961(k)-(2*k) computed for the natural numbers k for which k and A003961(k) are relatively prime, where A003961 is fully multiplicative with a(prime(i)) = prime(i+1).

n	a(n)
1	-1
2	-1
3	-1
4	1
5	-3
6	-3
7	11
8	7
9	1
10	-9
11	-9
12	5
13	49
14	-15
15	-15
16	23
17	13
18	-5
19	-17
20	-1
21	-1
22	71
23	43
24	-27
25	-25
26	179
27	-1
28	-11
29	-33
30	-7
31	7
32	109
33	-39
34	-39
35	29
36	-5
37	-41
38	23
39	47
40	-7
41	49
42	-47
43	-19
44	185
45	1
46	-23
47	-57
48	-55
49	-13
50	149
51	601
52	-11
53	-63
54	35
55	7
56	-69
57	-67
58	-25
59	55
60	-75
61	407
62	463
63	-35
64	-77
65	-37
66	-31
67	-19
68	175
69	-81
70	5
71	77
72	-1

[-1, -1, -1, 1, -3, -3, 11, 7, 1, -9, -9, 5, 49, -15, -15, 23, 13, -5, -17, -1, -1, 71, 43, -27, -25, 179, -1, -11, -33, -7, 7, 109, -39, -39, 29, -5, -41, 23, 47, -7, 49, -47, -19, 185, 1, -23, -57, -55, -13, 149, 601, -11, -63, 35, 7, -69, -67, -25, 55, -75, 407, 463, -35, -77, -37, -31, -19, 175, -81, 5, 77, -1]

cp's OEIS Frontend

A379229 Difference A003961(k)-(2*k) computed for the natural numbers k for which k and A003961(k) are relatively prime, where A003961 is fully multiplicative with a(prime(i)) = prime(i+1).

Table of values

List of values

n	a(n)
1	-1
2	-1
3	-1
4	1
5	-3
6	-3
7	11
8	7
9	1
10	-9
11	-9
12	5
13	49
14	-15
15	-15
16	23
17	13
18	-5
19	-17
20	-1
21	-1
22	71
23	43
24	-27
25	-25
26	179
27	-1
28	-11
29	-33
30	-7
31	7
32	109
33	-39
34	-39
35	29
36	-5
37	-41
38	23
39	47
40	-7
41	49
42	-47
43	-19
44	185
45	1
46	-23
47	-57
48	-55
49	-13
50	149
51	601
52	-11
53	-63
54	35
55	7
56	-69
57	-67
58	-25
59	55
60	-75
61	407
62	463
63	-35
64	-77
65	-37
66	-31
67	-19
68	175
69	-81
70	5
71	77
72	-1

n	a(n)
1	-1
2	-1
3	-1
4	1
5	-3
6	-3
7	11
8	7
9	1
10	-9
11	-9
12	5
13	49
14	-15
15	-15
16	23
17	13
18	-5
19	-17
20	-1
21	-1
22	71
23	43
24	-27
25	-25
26	179
27	-1
28	-11
29	-33
30	-7
31	7
32	109
33	-39
34	-39
35	29
36	-5
37	-41
38	23
39	47
40	-7
41	49
42	-47
43	-19
44	185
45	1
46	-23
47	-57
48	-55
49	-13
50	149
51	601
52	-11
53	-63
54	35
55	7
56	-69
57	-67
58	-25
59	55
60	-75
61	407
62	463
63	-35
64	-77
65	-37
66	-31
67	-19
68	175
69	-81
70	5
71	77
72	-1

n	a(n)
1	-1
2	-1
3	-1
4	1
5	-3
6	-3
7	11
8	7
9	1
10	-9
11	-9
12	5
13	49
14	-15
15	-15
16	23
17	13
18	-5
19	-17
20	-1
21	-1
22	71
23	43
24	-27
25	-25
26	179
27	-1
28	-11
29	-33
30	-7
31	7
32	109
33	-39
34	-39
35	29
36	-5
37	-41
38	23
39	47
40	-7
41	49
42	-47
43	-19
44	185
45	1
46	-23
47	-57
48	-55
49	-13
50	149
51	601
52	-11
53	-63
54	35
55	7
56	-69
57	-67
58	-25
59	55
60	-75
61	407
62	463
63	-35
64	-77
65	-37
66	-31
67	-19
68	175
69	-81
70	5
71	77
72	-1