A372744 - cp's OEIS frontend

A372744 If the n-th 3-smooth number, A003586(n), equals 2^i * 3^j for some i, j >= 0, then the a(n)-th 3-smooth number, A003586(a(n)), equals 2^j * 3^i.

n	a(n)
1	1
2	3
3	2
4	7
5	5
6	12
7	4
8	10
9	19
10	8
11	16
12	6
13	27
14	14
15	24
16	11
17	37
18	21
19	9
20	33
21	18
22	49
23	30
24	15
25	44
26	26
27	13
28	62
29	40
30	23
31	57
32	36
33	20
34	77
35	52
36	32
37	17
38	71
39	47
40	29
41	93
42	66
43	43
44	25
45	87
46	60
47	39
48	111
49	22
50	81
51	55
52	35
53	104
54	75
55	51
56	131
57	31
58	98
59	69
60	46
61	123
62	28
63	91
64	64
65	152
66	42

[1, 3, 2, 7, 5, 12, 4, 10, 19, 8, 16, 6, 27, 14, 24, 11, 37, 21, 9, 33, 18, 49, 30, 15, 44, 26, 13, 62, 40, 23, 57, 36, 20, 77, 52, 32, 17, 71, 47, 29, 93, 66, 43, 25, 87, 60, 39, 111, 22, 81, 55, 35, 104, 75, 51, 131, 31, 98, 69, 46, 123, 28, 91, 64, 152, 42]

cp's OEIS Frontend

A372744 If the n-th 3-smooth number, A003586(n), equals 2^i * 3^j for some i, j >= 0, then the a(n)-th 3-smooth number, A003586(a(n)), equals 2^j * 3^i.

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	7
5	5
6	12
7	4
8	10
9	19
10	8
11	16
12	6
13	27
14	14
15	24
16	11
17	37
18	21
19	9
20	33
21	18
22	49
23	30
24	15
25	44
26	26
27	13
28	62
29	40
30	23
31	57
32	36
33	20
34	77
35	52
36	32
37	17
38	71
39	47
40	29
41	93
42	66
43	43
44	25
45	87
46	60
47	39
48	111
49	22
50	81
51	55
52	35
53	104
54	75
55	51
56	131
57	31
58	98
59	69
60	46
61	123
62	28
63	91
64	64
65	152
66	42

n	a(n)
1	1
2	3
3	2
4	7
5	5
6	12
7	4
8	10
9	19
10	8
11	16
12	6
13	27
14	14
15	24
16	11
17	37
18	21
19	9
20	33
21	18
22	49
23	30
24	15
25	44
26	26
27	13
28	62
29	40
30	23
31	57
32	36
33	20
34	77
35	52
36	32
37	17
38	71
39	47
40	29
41	93
42	66
43	43
44	25
45	87
46	60
47	39
48	111
49	22
50	81
51	55
52	35
53	104
54	75
55	51
56	131
57	31
58	98
59	69
60	46
61	123
62	28
63	91
64	64
65	152
66	42

n	a(n)
1	1
2	3
3	2
4	7
5	5
6	12
7	4
8	10
9	19
10	8
11	16
12	6
13	27
14	14
15	24
16	11
17	37
18	21
19	9
20	33
21	18
22	49
23	30
24	15
25	44
26	26
27	13
28	62
29	40
30	23
31	57
32	36
33	20
34	77
35	52
36	32
37	17
38	71
39	47
40	29
41	93
42	66
43	43
44	25
45	87
46	60
47	39
48	111
49	22
50	81
51	55
52	35
53	104
54	75
55	51
56	131
57	31
58	98
59	69
60	46
61	123
62	28
63	91
64	64
65	152
66	42