A285575 - cp's OEIS frontend

A285575 Lexicographically earliest sequence of distinct positive terms such that the product of two consecutive terms is divisible by p^2 for at least two distinct primes p.

n	a(n)
1	1
2	36
3	2
4	18
5	4
6	9
7	8
8	25
9	12
10	3
11	24
12	6
13	30
14	10
15	20
16	5
17	40
18	15
19	45
20	16
21	27
22	28
23	7
24	56
25	14
26	42
27	21
28	48
29	33
30	44
31	11
32	72
33	13
34	52
35	26
36	50
37	22
38	54
39	32
40	49
41	60
42	35
43	63
44	64
45	75
46	39
47	78
48	66
49	84
50	51
51	68
52	17
53	100
54	19
55	76
56	38
57	90
58	34
59	98
60	46
61	92
62	23
63	108
64	29
65	116
66	58

[1, 36, 2, 18, 4, 9, 8, 25, 12, 3, 24, 6, 30, 10, 20, 5, 40, 15, 45, 16, 27, 28, 7, 56, 14, 42, 21, 48, 33, 44, 11, 72, 13, 52, 26, 50, 22, 54, 32, 49, 60, 35, 63, 64, 75, 39, 78, 66, 84, 51, 68, 17, 100, 19, 76, 38, 90, 34, 98, 46, 92, 23, 108, 29, 116, 58]

cp's OEIS Frontend

A285575 Lexicographically earliest sequence of distinct positive terms such that the product of two consecutive terms is divisible by p^2 for at least two distinct primes p.

Table of values

List of values

n	a(n)
1	1
2	36
3	2
4	18
5	4
6	9
7	8
8	25
9	12
10	3
11	24
12	6
13	30
14	10
15	20
16	5
17	40
18	15
19	45
20	16
21	27
22	28
23	7
24	56
25	14
26	42
27	21
28	48
29	33
30	44
31	11
32	72
33	13
34	52
35	26
36	50
37	22
38	54
39	32
40	49
41	60
42	35
43	63
44	64
45	75
46	39
47	78
48	66
49	84
50	51
51	68
52	17
53	100
54	19
55	76
56	38
57	90
58	34
59	98
60	46
61	92
62	23
63	108
64	29
65	116
66	58

n	a(n)
1	1
2	36
3	2
4	18
5	4
6	9
7	8
8	25
9	12
10	3
11	24
12	6
13	30
14	10
15	20
16	5
17	40
18	15
19	45
20	16
21	27
22	28
23	7
24	56
25	14
26	42
27	21
28	48
29	33
30	44
31	11
32	72
33	13
34	52
35	26
36	50
37	22
38	54
39	32
40	49
41	60
42	35
43	63
44	64
45	75
46	39
47	78
48	66
49	84
50	51
51	68
52	17
53	100
54	19
55	76
56	38
57	90
58	34
59	98
60	46
61	92
62	23
63	108
64	29
65	116
66	58

n	a(n)
1	1
2	36
3	2
4	18
5	4
6	9
7	8
8	25
9	12
10	3
11	24
12	6
13	30
14	10
15	20
16	5
17	40
18	15
19	45
20	16
21	27
22	28
23	7
24	56
25	14
26	42
27	21
28	48
29	33
30	44
31	11
32	72
33	13
34	52
35	26
36	50
37	22
38	54
39	32
40	49
41	60
42	35
43	63
44	64
45	75
46	39
47	78
48	66
49	84
50	51
51	68
52	17
53	100
54	19
55	76
56	38
57	90
58	34
59	98
60	46
61	92
62	23
63	108
64	29
65	116
66	58