A071191 - cp's OEIS frontend

A071191 Least m>n such that the number of prime factors of m and n differ at most by 1.

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	9
8	9
9	10
10	11
11	13
12	14
13	14
14	15
15	17
16	18
17	19
18	20
19	21
20	21
21	22
22	23
23	25
24	27
25	26
26	27
27	28
28	30
29	31
30	33
31	33
32	36
33	34
34	35
35	37
36	40
37	38
38	39
39	41
40	42
41	43
42	44
43	46
44	45
45	46
46	47
47	49
48	54
49	50
50	51
51	52
52	54
53	55
54	56
55	57
56	60
57	58
58	59
59	61
60	63
61	62
62	63
63	65

[2, 3, 4, 5, 6, 7, 9, 9, 10, 11, 13, 14, 14, 15, 17, 18, 19, 20, 21, 21, 22, 23, 25, 27, 26, 27, 28, 30, 31, 33, 33, 36, 34, 35, 37, 40, 38, 39, 41, 42, 43, 44, 46, 45, 46, 47, 49, 54, 50, 51, 52, 54, 55, 56, 57, 60, 58, 59, 61, 63, 62, 63, 65]

cp's OEIS Frontend

A071191 Least m>n such that the number of prime factors of m and n differ at most by 1.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	9
8	9
9	10
10	11
11	13
12	14
13	14
14	15
15	17
16	18
17	19
18	20
19	21
20	21
21	22
22	23
23	25
24	27
25	26
26	27
27	28
28	30
29	31
30	33
31	33
32	36
33	34
34	35
35	37
36	40
37	38
38	39
39	41
40	42
41	43
42	44
43	46
44	45
45	46
46	47
47	49
48	54
49	50
50	51
51	52
52	54
53	55
54	56
55	57
56	60
57	58
58	59
59	61
60	63
61	62
62	63
63	65

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	9
8	9
9	10
10	11
11	13
12	14
13	14
14	15
15	17
16	18
17	19
18	20
19	21
20	21
21	22
22	23
23	25
24	27
25	26
26	27
27	28
28	30
29	31
30	33
31	33
32	36
33	34
34	35
35	37
36	40
37	38
38	39
39	41
40	42
41	43
42	44
43	46
44	45
45	46
46	47
47	49
48	54
49	50
50	51
51	52
52	54
53	55
54	56
55	57
56	60
57	58
58	59
59	61
60	63
61	62
62	63
63	65

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	9
8	9
9	10
10	11
11	13
12	14
13	14
14	15
15	17
16	18
17	19
18	20
19	21
20	21
21	22
22	23
23	25
24	27
25	26
26	27
27	28
28	30
29	31
30	33
31	33
32	36
33	34
34	35
35	37
36	40
37	38
38	39
39	41
40	42
41	43
42	44
43	46
44	45
45	46
46	47
47	49
48	54
49	50
50	51
51	52
52	54
53	55
54	56
55	57
56	60
57	58
58	59
59	61
60	63
61	62
62	63
63	65