A069799 - cp's OEIS frontend

A069799 The number obtained by reversing the sequence of nonzero exponents in the prime factorization of n with respect to distinct primes present, as ordered by their indices.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	18
13	13
14	14
15	15
16	16
17	17
18	12
19	19
20	50
21	21
22	22
23	23
24	54
25	25
26	26
27	27
28	98
29	29
30	30
31	31
32	32
33	33
34	34
35	35
36	36
37	37
38	38
39	39
40	250
41	41
42	42
43	43
44	242
45	75
46	46
47	47
48	162
49	49
50	20
51	51
52	338
53	53
54	24
55	55
56	686
57	57
58	58
59	59
60	150
61	61
62	62
63	147
64	64
65	65

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18, 13, 14, 15, 16, 17, 12, 19, 50, 21, 22, 23, 54, 25, 26, 27, 98, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 250, 41, 42, 43, 242, 75, 46, 47, 162, 49, 20, 51, 338, 53, 24, 55, 686, 57, 58, 59, 150, 61, 62, 147, 64, 65]

cp's OEIS Frontend

A069799 The number obtained by reversing the sequence of nonzero exponents in the prime factorization of n with respect to distinct primes present, as ordered by their indices.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	18
13	13
14	14
15	15
16	16
17	17
18	12
19	19
20	50
21	21
22	22
23	23
24	54
25	25
26	26
27	27
28	98
29	29
30	30
31	31
32	32
33	33
34	34
35	35
36	36
37	37
38	38
39	39
40	250
41	41
42	42
43	43
44	242
45	75
46	46
47	47
48	162
49	49
50	20
51	51
52	338
53	53
54	24
55	55
56	686
57	57
58	58
59	59
60	150
61	61
62	62
63	147
64	64
65	65

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	18
13	13
14	14
15	15
16	16
17	17
18	12
19	19
20	50
21	21
22	22
23	23
24	54
25	25
26	26
27	27
28	98
29	29
30	30
31	31
32	32
33	33
34	34
35	35
36	36
37	37
38	38
39	39
40	250
41	41
42	42
43	43
44	242
45	75
46	46
47	47
48	162
49	49
50	20
51	51
52	338
53	53
54	24
55	55
56	686
57	57
58	58
59	59
60	150
61	61
62	62
63	147
64	64
65	65

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	18
13	13
14	14
15	15
16	16
17	17
18	12
19	19
20	50
21	21
22	22
23	23
24	54
25	25
26	26
27	27
28	98
29	29
30	30
31	31
32	32
33	33
34	34
35	35
36	36
37	37
38	38
39	39
40	250
41	41
42	42
43	43
44	242
45	75
46	46
47	47
48	162
49	49
50	20
51	51
52	338
53	53
54	24
55	55
56	686
57	57
58	58
59	59
60	150
61	61
62	62
63	147
64	64
65	65