A367799 - cp's OEIS frontend

A367799 Ordinal transform of the final nonzero digit of the factorial numbers.

n	a(n)
0	1
1	2
2	1
3	1
4	1
5	2
6	3
7	2
8	4
9	1
10	2
11	3
12	2
13	4
14	5
15	5
16	6
17	3
18	7
19	6
20	3
21	4
22	8
23	5
24	4
25	6
26	7
27	9
28	8
29	5
30	10
31	11
32	6
33	12
34	7
35	8
36	9
37	9
38	10
39	13
40	11
41	12
42	10
43	13
44	14
45	7
46	8
47	14
48	9
49	11
50	15
51	16
52	12
53	17
54	15
55	13
56	14
57	16
58	15
59	10
60	11
61	12
62	18
63	13
64	16
65	14
66	15
67	19
68	16
69	17
70	17
71	18
72	17
73	19
74	20

[1, 2, 1, 1, 1, 2, 3, 2, 4, 1, 2, 3, 2, 4, 5, 5, 6, 3, 7, 6, 3, 4, 8, 5, 4, 6, 7, 9, 8, 5, 10, 11, 6, 12, 7, 8, 9, 9, 10, 13, 11, 12, 10, 13, 14, 7, 8, 14, 9, 11, 15, 16, 12, 17, 15, 13, 14, 16, 15, 10, 11, 12, 18, 13, 16, 14, 15, 19, 16, 17, 17, 18, 17, 19, 20]

cp's OEIS Frontend

A367799 Ordinal transform of the final nonzero digit of the factorial numbers.

Table of values

List of values

n	a(n)
0	1
1	2
2	1
3	1
4	1
5	2
6	3
7	2
8	4
9	1
10	2
11	3
12	2
13	4
14	5
15	5
16	6
17	3
18	7
19	6
20	3
21	4
22	8
23	5
24	4
25	6
26	7
27	9
28	8
29	5
30	10
31	11
32	6
33	12
34	7
35	8
36	9
37	9
38	10
39	13
40	11
41	12
42	10
43	13
44	14
45	7
46	8
47	14
48	9
49	11
50	15
51	16
52	12
53	17
54	15
55	13
56	14
57	16
58	15
59	10
60	11
61	12
62	18
63	13
64	16
65	14
66	15
67	19
68	16
69	17
70	17
71	18
72	17
73	19
74	20

n	a(n)
0	1
1	2
2	1
3	1
4	1
5	2
6	3
7	2
8	4
9	1
10	2
11	3
12	2
13	4
14	5
15	5
16	6
17	3
18	7
19	6
20	3
21	4
22	8
23	5
24	4
25	6
26	7
27	9
28	8
29	5
30	10
31	11
32	6
33	12
34	7
35	8
36	9
37	9
38	10
39	13
40	11
41	12
42	10
43	13
44	14
45	7
46	8
47	14
48	9
49	11
50	15
51	16
52	12
53	17
54	15
55	13
56	14
57	16
58	15
59	10
60	11
61	12
62	18
63	13
64	16
65	14
66	15
67	19
68	16
69	17
70	17
71	18
72	17
73	19
74	20

n	a(n)
0	1
1	2
2	1
3	1
4	1
5	2
6	3
7	2
8	4
9	1
10	2
11	3
12	2
13	4
14	5
15	5
16	6
17	3
18	7
19	6
20	3
21	4
22	8
23	5
24	4
25	6
26	7
27	9
28	8
29	5
30	10
31	11
32	6
33	12
34	7
35	8
36	9
37	9
38	10
39	13
40	11
41	12
42	10
43	13
44	14
45	7
46	8
47	14
48	9
49	11
50	15
51	16
52	12
53	17
54	15
55	13
56	14
57	16
58	15
59	10
60	11
61	12
62	18
63	13
64	16
65	14
66	15
67	19
68	16
69	17
70	17
71	18
72	17
73	19
74	20