A081811 - cp's OEIS frontend

A081811 If n = p_1^e_1 * ... * p_k^e_k, p_1 < ... < p_k primes, then a(n) = min{ p_i*e_i }.

n	a(n)
1	0
2	2
3	3
4	4
5	5
6	2
7	7
8	6
9	6
10	2
11	11
12	3
13	13
14	2
15	3
16	8
17	17
18	2
19	19
20	4
21	3
22	2
23	23
24	3
25	10
26	2
27	9
28	4
29	29
30	2
31	31
32	10
33	3
34	2
35	5
36	4
37	37
38	2
39	3
40	5
41	41
42	2
43	43
44	4
45	5
46	2
47	47
48	3
49	14
50	2
51	3
52	4
53	53
54	2
55	5
56	6
57	3
58	2
59	59
60	3
61	61
62	2
63	6
64	12
65	5
66	2
67	67
68	4
69	3
70	2
71	71
72	6
73	73
74	2
75	3
76	4
77	7
78	2
79	79
80	5
81	12
82	2
83	83
84	3
85	5
86	2
87	3
88	6
89	89
90	2
91	7
92	4
93	3

[0, 2, 3, 4, 5, 2, 7, 6, 6, 2, 11, 3, 13, 2, 3, 8, 17, 2, 19, 4, 3, 2, 23, 3, 10, 2, 9, 4, 29, 2, 31, 10, 3, 2, 5, 4, 37, 2, 3, 5, 41, 2, 43, 4, 5, 2, 47, 3, 14, 2, 3, 4, 53, 2, 5, 6, 3, 2, 59, 3, 61, 2, 6, 12, 5, 2, 67, 4, 3, 2, 71, 6, 73, 2, 3, 4, 7, 2, 79, 5, 12, 2, 83, 3, 5, 2, 3, 6, 89, 2, 7, 4, 3]

cp's OEIS Frontend

A081811 If n = p_1^e_1 * ... * p_k^e_k, p_1 < ... < p_k primes, then a(n) = min{ p_i*e_i }.

Table of values

List of values

n	a(n)
1	0
2	2
3	3
4	4
5	5
6	2
7	7
8	6
9	6
10	2
11	11
12	3
13	13
14	2
15	3
16	8
17	17
18	2
19	19
20	4
21	3
22	2
23	23
24	3
25	10
26	2
27	9
28	4
29	29
30	2
31	31
32	10
33	3
34	2
35	5
36	4
37	37
38	2
39	3
40	5
41	41
42	2
43	43
44	4
45	5
46	2
47	47
48	3
49	14
50	2
51	3
52	4
53	53
54	2
55	5
56	6
57	3
58	2
59	59
60	3
61	61
62	2
63	6
64	12
65	5
66	2
67	67
68	4
69	3
70	2
71	71
72	6
73	73
74	2
75	3
76	4
77	7
78	2
79	79
80	5
81	12
82	2
83	83
84	3
85	5
86	2
87	3
88	6
89	89
90	2
91	7
92	4
93	3

n	a(n)
1	0
2	2
3	3
4	4
5	5
6	2
7	7
8	6
9	6
10	2
11	11
12	3
13	13
14	2
15	3
16	8
17	17
18	2
19	19
20	4
21	3
22	2
23	23
24	3
25	10
26	2
27	9
28	4
29	29
30	2
31	31
32	10
33	3
34	2
35	5
36	4
37	37
38	2
39	3
40	5
41	41
42	2
43	43
44	4
45	5
46	2
47	47
48	3
49	14
50	2
51	3
52	4
53	53
54	2
55	5
56	6
57	3
58	2
59	59
60	3
61	61
62	2
63	6
64	12
65	5
66	2
67	67
68	4
69	3
70	2
71	71
72	6
73	73
74	2
75	3
76	4
77	7
78	2
79	79
80	5
81	12
82	2
83	83
84	3
85	5
86	2
87	3
88	6
89	89
90	2
91	7
92	4
93	3

n	a(n)
1	0
2	2
3	3
4	4
5	5
6	2
7	7
8	6
9	6
10	2
11	11
12	3
13	13
14	2
15	3
16	8
17	17
18	2
19	19
20	4
21	3
22	2
23	23
24	3
25	10
26	2
27	9
28	4
29	29
30	2
31	31
32	10
33	3
34	2
35	5
36	4
37	37
38	2
39	3
40	5
41	41
42	2
43	43
44	4
45	5
46	2
47	47
48	3
49	14
50	2
51	3
52	4
53	53
54	2
55	5
56	6
57	3
58	2
59	59
60	3
61	61
62	2
63	6
64	12
65	5
66	2
67	67
68	4
69	3
70	2
71	71
72	6
73	73
74	2
75	3
76	4
77	7
78	2
79	79
80	5
81	12
82	2
83	83
84	3
85	5
86	2
87	3
88	6
89	89
90	2
91	7
92	4
93	3