A318885 - cp's OEIS frontend

A318885 If n = p^a * q^b * ... * r^c, with p < q < r primes, with nonzero exponents a, b, c, then a(n) = prime(1+p-p)^a * prime(1+q-p)^b * ... * prime(1+r-p)^c; a(1) = 1.

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	6
7	2
8	8
9	4
10	14
11	2
12	12
13	2
14	26
15	10
16	16
17	2
18	18
19	2
20	28
21	22
22	58
23	2
24	24
25	4
26	74
27	8
28	52
29	2
30	42
31	2
32	32
33	46
34	106
35	10
36	36
37	2
38	122
39	62
40	56
41	2
42	78
43	2
44	116
45	20
46	158
47	2
48	48
49	4
50	98
51	94
52	148
53	2
54	54
55	34
56	104
57	118
58	214
59	2
60	84
61	2
62	226
63	44
64	64
65	46
66	174
67	2
68	212
69	146
70	182
71	2
72	72
73	2
74	302
75	50
76	244
77	22
78	222
79	2
80	112
81	16
82	346
83	2
84	156
85	82
86	362
87	206
88	232
89	2

[1, 2, 2, 4, 2, 6, 2, 8, 4, 14, 2, 12, 2, 26, 10, 16, 2, 18, 2, 28, 22, 58, 2, 24, 4, 74, 8, 52, 2, 42, 2, 32, 46, 106, 10, 36, 2, 122, 62, 56, 2, 78, 2, 116, 20, 158, 2, 48, 4, 98, 94, 148, 2, 54, 34, 104, 118, 214, 2, 84, 2, 226, 44, 64, 46, 174, 2, 212, 146, 182, 2, 72, 2, 302, 50, 244, 22, 222, 2, 112, 16, 346, 2, 156, 82, 362, 206, 232, 2]

cp's OEIS Frontend

A318885 If n = p^a * q^b * ... * r^c, with p < q < r primes, with nonzero exponents a, b, c, then a(n) = prime(1+p-p)^a * prime(1+q-p)^b * ... * prime(1+r-p)^c; a(1) = 1.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	6
7	2
8	8
9	4
10	14
11	2
12	12
13	2
14	26
15	10
16	16
17	2
18	18
19	2
20	28
21	22
22	58
23	2
24	24
25	4
26	74
27	8
28	52
29	2
30	42
31	2
32	32
33	46
34	106
35	10
36	36
37	2
38	122
39	62
40	56
41	2
42	78
43	2
44	116
45	20
46	158
47	2
48	48
49	4
50	98
51	94
52	148
53	2
54	54
55	34
56	104
57	118
58	214
59	2
60	84
61	2
62	226
63	44
64	64
65	46
66	174
67	2
68	212
69	146
70	182
71	2
72	72
73	2
74	302
75	50
76	244
77	22
78	222
79	2
80	112
81	16
82	346
83	2
84	156
85	82
86	362
87	206
88	232
89	2

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	6
7	2
8	8
9	4
10	14
11	2
12	12
13	2
14	26
15	10
16	16
17	2
18	18
19	2
20	28
21	22
22	58
23	2
24	24
25	4
26	74
27	8
28	52
29	2
30	42
31	2
32	32
33	46
34	106
35	10
36	36
37	2
38	122
39	62
40	56
41	2
42	78
43	2
44	116
45	20
46	158
47	2
48	48
49	4
50	98
51	94
52	148
53	2
54	54
55	34
56	104
57	118
58	214
59	2
60	84
61	2
62	226
63	44
64	64
65	46
66	174
67	2
68	212
69	146
70	182
71	2
72	72
73	2
74	302
75	50
76	244
77	22
78	222
79	2
80	112
81	16
82	346
83	2
84	156
85	82
86	362
87	206
88	232
89	2

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	6
7	2
8	8
9	4
10	14
11	2
12	12
13	2
14	26
15	10
16	16
17	2
18	18
19	2
20	28
21	22
22	58
23	2
24	24
25	4
26	74
27	8
28	52
29	2
30	42
31	2
32	32
33	46
34	106
35	10
36	36
37	2
38	122
39	62
40	56
41	2
42	78
43	2
44	116
45	20
46	158
47	2
48	48
49	4
50	98
51	94
52	148
53	2
54	54
55	34
56	104
57	118
58	214
59	2
60	84
61	2
62	226
63	44
64	64
65	46
66	174
67	2
68	212
69	146
70	182
71	2
72	72
73	2
74	302
75	50
76	244
77	22
78	222
79	2
80	112
81	16
82	346
83	2
84	156
85	82
86	362
87	206
88	232
89	2