A063754 - cp's OEIS frontend

A063754 Dirichlet convolution of totient and cototient.

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	7
7	1
8	8
9	5
10	11
11	1
12	20
13	1
14	15
15	13
16	20
17	1
18	31
19	1
20	32
21	17
22	23
23	1
24	52
25	9
26	27
27	21
28	44
29	1
30	71
31	1
32	48
33	25
34	35
35	21
36	88
37	1
38	39
39	29
40	84
41	1
42	99
43	1
44	68
45	61
46	47
47	1
48	128
49	13
50	83
51	37
52	80
53	1
54	123
55	29
56	116
57	41
58	59
59	1
60	200
61	1
62	63
63	81
64	112
65	33
66	155
67	1
68	104
69	49
70	159
71	1
72	228
73	1
74	75
75	101

[0, 1, 1, 3, 1, 7, 1, 8, 5, 11, 1, 20, 1, 15, 13, 20, 1, 31, 1, 32, 17, 23, 1, 52, 9, 27, 21, 44, 1, 71, 1, 48, 25, 35, 21, 88, 1, 39, 29, 84, 1, 99, 1, 68, 61, 47, 1, 128, 13, 83, 37, 80, 1, 123, 29, 116, 41, 59, 1, 200, 1, 63, 81, 112, 33, 155, 1, 104, 49, 159, 1, 228, 1, 75, 101]

cp's OEIS Frontend

A063754 Dirichlet convolution of totient and cototient.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	7
7	1
8	8
9	5
10	11
11	1
12	20
13	1
14	15
15	13
16	20
17	1
18	31
19	1
20	32
21	17
22	23
23	1
24	52
25	9
26	27
27	21
28	44
29	1
30	71
31	1
32	48
33	25
34	35
35	21
36	88
37	1
38	39
39	29
40	84
41	1
42	99
43	1
44	68
45	61
46	47
47	1
48	128
49	13
50	83
51	37
52	80
53	1
54	123
55	29
56	116
57	41
58	59
59	1
60	200
61	1
62	63
63	81
64	112
65	33
66	155
67	1
68	104
69	49
70	159
71	1
72	228
73	1
74	75
75	101

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	7
7	1
8	8
9	5
10	11
11	1
12	20
13	1
14	15
15	13
16	20
17	1
18	31
19	1
20	32
21	17
22	23
23	1
24	52
25	9
26	27
27	21
28	44
29	1
30	71
31	1
32	48
33	25
34	35
35	21
36	88
37	1
38	39
39	29
40	84
41	1
42	99
43	1
44	68
45	61
46	47
47	1
48	128
49	13
50	83
51	37
52	80
53	1
54	123
55	29
56	116
57	41
58	59
59	1
60	200
61	1
62	63
63	81
64	112
65	33
66	155
67	1
68	104
69	49
70	159
71	1
72	228
73	1
74	75
75	101

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	7
7	1
8	8
9	5
10	11
11	1
12	20
13	1
14	15
15	13
16	20
17	1
18	31
19	1
20	32
21	17
22	23
23	1
24	52
25	9
26	27
27	21
28	44
29	1
30	71
31	1
32	48
33	25
34	35
35	21
36	88
37	1
38	39
39	29
40	84
41	1
42	99
43	1
44	68
45	61
46	47
47	1
48	128
49	13
50	83
51	37
52	80
53	1
54	123
55	29
56	116
57	41
58	59
59	1
60	200
61	1
62	63
63	81
64	112
65	33
66	155
67	1
68	104
69	49
70	159
71	1
72	228
73	1
74	75
75	101