A363501 - cp's OEIS frontend

A363501 a(n) = smallest product > n of some subset of the divisors of n, or if no product > n exists then a(n) = n.

n	a(n)
1	1
2	2
3	3
4	8
5	5
6	12
7	7
8	16
9	27
10	20
11	11
12	18
13	13
14	28
15	45
16	32
17	17
18	27
19	19
20	40
21	63
22	44
23	23
24	32
25	125
26	52
27	81
28	56
29	29
30	36
31	31
32	64
33	99
34	68
35	175
36	48
37	37
38	76
39	117
40	50
41	41
42	63
43	43
44	88
45	75
46	92
47	47
48	64
49	343
50	100
51	153
52	104
53	53
54	81
55	275
56	64
57	171
58	116
59	59
60	72
61	61
62	124
63	147

[1, 2, 3, 8, 5, 12, 7, 16, 27, 20, 11, 18, 13, 28, 45, 32, 17, 27, 19, 40, 63, 44, 23, 32, 125, 52, 81, 56, 29, 36, 31, 64, 99, 68, 175, 48, 37, 76, 117, 50, 41, 63, 43, 88, 75, 92, 47, 64, 343, 100, 153, 104, 53, 81, 275, 64, 171, 116, 59, 72, 61, 124, 147]

cp's OEIS Frontend

A363501 a(n) = smallest product > n of some subset of the divisors of n, or if no product > n exists then a(n) = n.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	8
5	5
6	12
7	7
8	16
9	27
10	20
11	11
12	18
13	13
14	28
15	45
16	32
17	17
18	27
19	19
20	40
21	63
22	44
23	23
24	32
25	125
26	52
27	81
28	56
29	29
30	36
31	31
32	64
33	99
34	68
35	175
36	48
37	37
38	76
39	117
40	50
41	41
42	63
43	43
44	88
45	75
46	92
47	47
48	64
49	343
50	100
51	153
52	104
53	53
54	81
55	275
56	64
57	171
58	116
59	59
60	72
61	61
62	124
63	147

n	a(n)
1	1
2	2
3	3
4	8
5	5
6	12
7	7
8	16
9	27
10	20
11	11
12	18
13	13
14	28
15	45
16	32
17	17
18	27
19	19
20	40
21	63
22	44
23	23
24	32
25	125
26	52
27	81
28	56
29	29
30	36
31	31
32	64
33	99
34	68
35	175
36	48
37	37
38	76
39	117
40	50
41	41
42	63
43	43
44	88
45	75
46	92
47	47
48	64
49	343
50	100
51	153
52	104
53	53
54	81
55	275
56	64
57	171
58	116
59	59
60	72
61	61
62	124
63	147

n	a(n)
1	1
2	2
3	3
4	8
5	5
6	12
7	7
8	16
9	27
10	20
11	11
12	18
13	13
14	28
15	45
16	32
17	17
18	27
19	19
20	40
21	63
22	44
23	23
24	32
25	125
26	52
27	81
28	56
29	29
30	36
31	31
32	64
33	99
34	68
35	175
36	48
37	37
38	76
39	117
40	50
41	41
42	63
43	43
44	88
45	75
46	92
47	47
48	64
49	343
50	100
51	153
52	104
53	53
54	81
55	275
56	64
57	171
58	116
59	59
60	72
61	61
62	124
63	147