A285386 - cp's OEIS frontend

A285386 Lexicographically earliest sequence of distinct positive terms such that the product of two consecutive terms is divisible by p^4 for some prime p.

n	a(n)
1	1
2	16
3	2
4	8
5	4
6	12
7	20
8	24
9	6
10	27
11	3
12	32
13	5
14	48
15	7
16	64
17	9
18	18
19	36
20	28
21	40
22	10
23	56
24	14
25	72
26	22
27	80
28	11
29	81
30	13
31	96
32	15
33	54
34	21
35	108
36	30
37	88
38	26
39	104
40	34
41	112
42	17
43	128
44	19
45	144
46	23
47	160
48	25
49	50
50	75
51	100
52	44
53	52
54	60
55	68
56	76
57	84
58	92
59	116
60	120
61	38
62	136
63	42
64	135
65	33

[1, 16, 2, 8, 4, 12, 20, 24, 6, 27, 3, 32, 5, 48, 7, 64, 9, 18, 36, 28, 40, 10, 56, 14, 72, 22, 80, 11, 81, 13, 96, 15, 54, 21, 108, 30, 88, 26, 104, 34, 112, 17, 128, 19, 144, 23, 160, 25, 50, 75, 100, 44, 52, 60, 68, 76, 84, 92, 116, 120, 38, 136, 42, 135, 33]

cp's OEIS Frontend

A285386 Lexicographically earliest sequence of distinct positive terms such that the product of two consecutive terms is divisible by p^4 for some prime p.

Table of values

List of values

n	a(n)
1	1
2	16
3	2
4	8
5	4
6	12
7	20
8	24
9	6
10	27
11	3
12	32
13	5
14	48
15	7
16	64
17	9
18	18
19	36
20	28
21	40
22	10
23	56
24	14
25	72
26	22
27	80
28	11
29	81
30	13
31	96
32	15
33	54
34	21
35	108
36	30
37	88
38	26
39	104
40	34
41	112
42	17
43	128
44	19
45	144
46	23
47	160
48	25
49	50
50	75
51	100
52	44
53	52
54	60
55	68
56	76
57	84
58	92
59	116
60	120
61	38
62	136
63	42
64	135
65	33

n	a(n)
1	1
2	16
3	2
4	8
5	4
6	12
7	20
8	24
9	6
10	27
11	3
12	32
13	5
14	48
15	7
16	64
17	9
18	18
19	36
20	28
21	40
22	10
23	56
24	14
25	72
26	22
27	80
28	11
29	81
30	13
31	96
32	15
33	54
34	21
35	108
36	30
37	88
38	26
39	104
40	34
41	112
42	17
43	128
44	19
45	144
46	23
47	160
48	25
49	50
50	75
51	100
52	44
53	52
54	60
55	68
56	76
57	84
58	92
59	116
60	120
61	38
62	136
63	42
64	135
65	33

n	a(n)
1	1
2	16
3	2
4	8
5	4
6	12
7	20
8	24
9	6
10	27
11	3
12	32
13	5
14	48
15	7
16	64
17	9
18	18
19	36
20	28
21	40
22	10
23	56
24	14
25	72
26	22
27	80
28	11
29	81
30	13
31	96
32	15
33	54
34	21
35	108
36	30
37	88
38	26
39	104
40	34
41	112
42	17
43	128
44	19
45	144
46	23
47	160
48	25
49	50
50	75
51	100
52	44
53	52
54	60
55	68
56	76
57	84
58	92
59	116
60	120
61	38
62	136
63	42
64	135
65	33