A291784 - cp's OEIS frontend

A291784 a(n) = (psi(n) + phi(n))/2.

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

[1, 2, 3, 4, 5, 7, 7, 8, 9, 11, 11, 14, 13, 15, 16, 16, 17, 21, 19, 22, 22, 23, 23, 28, 25, 27, 27, 30, 29, 40, 31, 32, 34, 35, 36, 42, 37, 39, 40, 44, 41, 54, 43, 46, 48, 47, 47, 56, 49, 55, 52, 54, 53, 63, 56, 60, 58]

cp's OEIS Frontend

A291784 a(n) = (psi(n) + phi(n))/2.

Table of values

List of values

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

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

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