A337937 - cp's OEIS frontend

A337937 a(n) = Euler totient function phi = A000010 evaluated at N(n) = floor((3*n-1)/2) = A001651(n), for n >= 1.

n	a(n)
1	1
2	1
3	2
4	4
5	6
6	4
7	4
8	10
9	12
10	6
11	8
12	16
13	18
14	8
15	10
16	22
17	20
18	12
19	12
20	28
21	30
22	16
23	16
24	24
25	36
26	18
27	16
28	40
29	42
30	20
31	22
32	46
33	42
34	20
35	24
36	52
37	40
38	24
39	28
40	58
41	60
42	30
43	32
44	48
45	66
46	32
47	24
48	70
49	72
50	36
51	36
52	60
53	78
54	32
55	40
56	82
57	64
58	42
59	40
60	88

[1, 1, 2, 4, 6, 4, 4, 10, 12, 6, 8, 16, 18, 8, 10, 22, 20, 12, 12, 28, 30, 16, 16, 24, 36, 18, 16, 40, 42, 20, 22, 46, 42, 20, 24, 52, 40, 24, 28, 58, 60, 30, 32, 48, 66, 32, 24, 70, 72, 36, 36, 60, 78, 32, 40, 82, 64, 42, 40, 88]

cp's OEIS Frontend

A337937 a(n) = Euler totient function phi = A000010 evaluated at N(n) = floor((3*n-1)/2) = A001651(n), for n >= 1.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	4
5	6
6	4
7	4
8	10
9	12
10	6
11	8
12	16
13	18
14	8
15	10
16	22
17	20
18	12
19	12
20	28
21	30
22	16
23	16
24	24
25	36
26	18
27	16
28	40
29	42
30	20
31	22
32	46
33	42
34	20
35	24
36	52
37	40
38	24
39	28
40	58
41	60
42	30
43	32
44	48
45	66
46	32
47	24
48	70
49	72
50	36
51	36
52	60
53	78
54	32
55	40
56	82
57	64
58	42
59	40
60	88

n	a(n)
1	1
2	1
3	2
4	4
5	6
6	4
7	4
8	10
9	12
10	6
11	8
12	16
13	18
14	8
15	10
16	22
17	20
18	12
19	12
20	28
21	30
22	16
23	16
24	24
25	36
26	18
27	16
28	40
29	42
30	20
31	22
32	46
33	42
34	20
35	24
36	52
37	40
38	24
39	28
40	58
41	60
42	30
43	32
44	48
45	66
46	32
47	24
48	70
49	72
50	36
51	36
52	60
53	78
54	32
55	40
56	82
57	64
58	42
59	40
60	88

n	a(n)
1	1
2	1
3	2
4	4
5	6
6	4
7	4
8	10
9	12
10	6
11	8
12	16
13	18
14	8
15	10
16	22
17	20
18	12
19	12
20	28
21	30
22	16
23	16
24	24
25	36
26	18
27	16
28	40
29	42
30	20
31	22
32	46
33	42
34	20
35	24
36	52
37	40
38	24
39	28
40	58
41	60
42	30
43	32
44	48
45	66
46	32
47	24
48	70
49	72
50	36
51	36
52	60
53	78
54	32
55	40
56	82
57	64
58	42
59	40
60	88