A135130 - cp's OEIS frontend

A135130 Let n = Product_{p} p ^ e_p be the prime factorization of n and let M = max{e_p + 1 }. Then n is in the sequence iff for all primes q in the range 3 <= q <= M we have e_q >= Sum_{r} floor( log_q (e_r + 1) ).

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	9
8	10
9	11
10	12
11	13
12	14
13	15
14	17
15	18
16	19
17	21
18	22
19	23
20	24
21	26
22	27
23	29
24	30
25	31
26	33
27	34
28	35
29	36
30	37
31	38
32	39
33	41
34	42
35	43
36	45
37	46
38	47
39	51
40	53
41	54
42	55
43	57
44	58
45	59
46	60
47	61
48	62
49	63
50	65
51	66
52	67
53	69
54	70
55	71
56	72
57	73
58	74
59	75
60	77
61	78
62	79
63	82
64	83
65	84
66	85
67	86
68	87
69	89
70	90
71	91
72	93
73	94
74	95
75	97

[1, 2, 3, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 21, 22, 23, 24, 26, 27, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 45, 46, 47, 51, 53, 54, 55, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 69, 70, 71, 72, 73, 74, 75, 77, 78, 79, 82, 83, 84, 85, 86, 87, 89, 90, 91, 93, 94, 95, 97]

cp's OEIS Frontend

A135130 Let n = Product_{p} p ^ e_p be the prime factorization of n and let M = max{e_p + 1 }. Then n is in the sequence iff for all primes q in the range 3 <= q <= M we have e_q >= Sum_{r} floor( log_q (e_r + 1) ).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	9
8	10
9	11
10	12
11	13
12	14
13	15
14	17
15	18
16	19
17	21
18	22
19	23
20	24
21	26
22	27
23	29
24	30
25	31
26	33
27	34
28	35
29	36
30	37
31	38
32	39
33	41
34	42
35	43
36	45
37	46
38	47
39	51
40	53
41	54
42	55
43	57
44	58
45	59
46	60
47	61
48	62
49	63
50	65
51	66
52	67
53	69
54	70
55	71
56	72
57	73
58	74
59	75
60	77
61	78
62	79
63	82
64	83
65	84
66	85
67	86
68	87
69	89
70	90
71	91
72	93
73	94
74	95
75	97

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	9
8	10
9	11
10	12
11	13
12	14
13	15
14	17
15	18
16	19
17	21
18	22
19	23
20	24
21	26
22	27
23	29
24	30
25	31
26	33
27	34
28	35
29	36
30	37
31	38
32	39
33	41
34	42
35	43
36	45
37	46
38	47
39	51
40	53
41	54
42	55
43	57
44	58
45	59
46	60
47	61
48	62
49	63
50	65
51	66
52	67
53	69
54	70
55	71
56	72
57	73
58	74
59	75
60	77
61	78
62	79
63	82
64	83
65	84
66	85
67	86
68	87
69	89
70	90
71	91
72	93
73	94
74	95
75	97

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	9
8	10
9	11
10	12
11	13
12	14
13	15
14	17
15	18
16	19
17	21
18	22
19	23
20	24
21	26
22	27
23	29
24	30
25	31
26	33
27	34
28	35
29	36
30	37
31	38
32	39
33	41
34	42
35	43
36	45
37	46
38	47
39	51
40	53
41	54
42	55
43	57
44	58
45	59
46	60
47	61
48	62
49	63
50	65
51	66
52	67
53	69
54	70
55	71
56	72
57	73
58	74
59	75
60	77
61	78
62	79
63	82
64	83
65	84
66	85
67	86
68	87
69	89
70	90
71	91
72	93
73	94
74	95
75	97