A262401 - cp's OEIS frontend

A262401 In prime factorization of n: replace each factor with its largest decimal digit.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	1
12	12
13	3
14	14
15	15
16	16
17	7
18	18
19	9
20	20
21	21
22	2
23	3
24	24
25	25
26	6
27	27
28	28
29	9
30	30
31	3
32	32
33	3
34	14
35	35
36	36
37	7
38	18
39	9
40	40
41	4
42	42
43	4
44	4
45	45
46	6
47	7
48	48
49	49
50	50
51	21
52	12
53	5
54	54
55	5
56	56
57	27
58	18
59	9
60	60
61	6
62	6
63	63
64	64
65	15
66	6
67	7
68	28
69	9
70	70
71	7
72	72
73	7
74	14

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 12, 3, 14, 15, 16, 7, 18, 9, 20, 21, 2, 3, 24, 25, 6, 27, 28, 9, 30, 3, 32, 3, 14, 35, 36, 7, 18, 9, 40, 4, 42, 4, 4, 45, 6, 7, 48, 49, 50, 21, 12, 5, 54, 5, 56, 27, 18, 9, 60, 6, 6, 63, 64, 15, 6, 7, 28, 9, 70, 7, 72, 7, 14]

cp's OEIS Frontend

A262401 In prime factorization of n: replace each factor with its largest decimal digit.

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	1
12	12
13	3
14	14
15	15
16	16
17	7
18	18
19	9
20	20
21	21
22	2
23	3
24	24
25	25
26	6
27	27
28	28
29	9
30	30
31	3
32	32
33	3
34	14
35	35
36	36
37	7
38	18
39	9
40	40
41	4
42	42
43	4
44	4
45	45
46	6
47	7
48	48
49	49
50	50
51	21
52	12
53	5
54	54
55	5
56	56
57	27
58	18
59	9
60	60
61	6
62	6
63	63
64	64
65	15
66	6
67	7
68	28
69	9
70	70
71	7
72	72
73	7
74	14

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	1
12	12
13	3
14	14
15	15
16	16
17	7
18	18
19	9
20	20
21	21
22	2
23	3
24	24
25	25
26	6
27	27
28	28
29	9
30	30
31	3
32	32
33	3
34	14
35	35
36	36
37	7
38	18
39	9
40	40
41	4
42	42
43	4
44	4
45	45
46	6
47	7
48	48
49	49
50	50
51	21
52	12
53	5
54	54
55	5
56	56
57	27
58	18
59	9
60	60
61	6
62	6
63	63
64	64
65	15
66	6
67	7
68	28
69	9
70	70
71	7
72	72
73	7
74	14

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	1
12	12
13	3
14	14
15	15
16	16
17	7
18	18
19	9
20	20
21	21
22	2
23	3
24	24
25	25
26	6
27	27
28	28
29	9
30	30
31	3
32	32
33	3
34	14
35	35
36	36
37	7
38	18
39	9
40	40
41	4
42	42
43	4
44	4
45	45
46	6
47	7
48	48
49	49
50	50
51	21
52	12
53	5
54	54
55	5
56	56
57	27
58	18
59	9
60	60
61	6
62	6
63	63
64	64
65	15
66	6
67	7
68	28
69	9
70	70
71	7
72	72
73	7
74	14