A309697 - cp's OEIS frontend

A309697 a(n) is the digit that precedes the last nonzero digit of n^n.

n	a(n)
1	0
2	0
3	2
4	5
5	2
6	5
7	4
8	1
9	8
10	0
11	1
12	5
13	5
14	1
15	7
16	1
17	7
18	2
19	7
20	7
21	2
22	8
23	6
24	7
25	2
26	7
27	0
28	3
29	6
30	4
31	3
32	7
33	1
34	3
35	7
36	3
37	1
38	0
39	5
40	7
41	4
42	6
43	0
44	9
45	2
46	9
47	6
48	5
49	4
50	2
51	5
52	9
53	7
54	5
55	7
56	5
57	5
58	8
59	3
60	7
61	6
62	4
63	4
64	1
65	2
66	1
67	2
68	7
69	2
70	4
71	7
72	1
73	3
74	7
75	7
76	7
77	9
78	6
79	1
80	7
81	8
82	2
83	8
84	3
85	2
86	3
87	8
88	9
89	0
90	0
91	9
92	3
93	9
94	9
95	7
96	9
97	3
98	4
99	9
100	0

[0, 0, 2, 5, 2, 5, 4, 1, 8, 0, 1, 5, 5, 1, 7, 1, 7, 2, 7, 7, 2, 8, 6, 7, 2, 7, 0, 3, 6, 4, 3, 7, 1, 3, 7, 3, 1, 0, 5, 7, 4, 6, 0, 9, 2, 9, 6, 5, 4, 2, 5, 9, 7, 5, 7, 5, 5, 8, 3, 7, 6, 4, 4, 1, 2, 1, 2, 7, 2, 4, 7, 1, 3, 7, 7, 7, 9, 6, 1, 7, 8, 2, 8, 3, 2, 3, 8, 9, 0, 0, 9, 3, 9, 9, 7, 9, 3, 4, 9, 0]

cp's OEIS Frontend

A309697 a(n) is the digit that precedes the last nonzero digit of n^n.

Table of values

List of values

n	a(n)
1	0
2	0
3	2
4	5
5	2
6	5
7	4
8	1
9	8
10	0
11	1
12	5
13	5
14	1
15	7
16	1
17	7
18	2
19	7
20	7
21	2
22	8
23	6
24	7
25	2
26	7
27	0
28	3
29	6
30	4
31	3
32	7
33	1
34	3
35	7
36	3
37	1
38	0
39	5
40	7
41	4
42	6
43	0
44	9
45	2
46	9
47	6
48	5
49	4
50	2
51	5
52	9
53	7
54	5
55	7
56	5
57	5
58	8
59	3
60	7
61	6
62	4
63	4
64	1
65	2
66	1
67	2
68	7
69	2
70	4
71	7
72	1
73	3
74	7
75	7
76	7
77	9
78	6
79	1
80	7
81	8
82	2
83	8
84	3
85	2
86	3
87	8
88	9
89	0
90	0
91	9
92	3
93	9
94	9
95	7
96	9
97	3
98	4
99	9
100	0

n	a(n)
1	0
2	0
3	2
4	5
5	2
6	5
7	4
8	1
9	8
10	0
11	1
12	5
13	5
14	1
15	7
16	1
17	7
18	2
19	7
20	7
21	2
22	8
23	6
24	7
25	2
26	7
27	0
28	3
29	6
30	4
31	3
32	7
33	1
34	3
35	7
36	3
37	1
38	0
39	5
40	7
41	4
42	6
43	0
44	9
45	2
46	9
47	6
48	5
49	4
50	2
51	5
52	9
53	7
54	5
55	7
56	5
57	5
58	8
59	3
60	7
61	6
62	4
63	4
64	1
65	2
66	1
67	2
68	7
69	2
70	4
71	7
72	1
73	3
74	7
75	7
76	7
77	9
78	6
79	1
80	7
81	8
82	2
83	8
84	3
85	2
86	3
87	8
88	9
89	0
90	0
91	9
92	3
93	9
94	9
95	7
96	9
97	3
98	4
99	9
100	0

n	a(n)
1	0
2	0
3	2
4	5
5	2
6	5
7	4
8	1
9	8
10	0
11	1
12	5
13	5
14	1
15	7
16	1
17	7
18	2
19	7
20	7
21	2
22	8
23	6
24	7
25	2
26	7
27	0
28	3
29	6
30	4
31	3
32	7
33	1
34	3
35	7
36	3
37	1
38	0
39	5
40	7
41	4
42	6
43	0
44	9
45	2
46	9
47	6
48	5
49	4
50	2
51	5
52	9
53	7
54	5
55	7
56	5
57	5
58	8
59	3
60	7
61	6
62	4
63	4
64	1
65	2
66	1
67	2
68	7
69	2
70	4
71	7
72	1
73	3
74	7
75	7
76	7
77	9
78	6
79	1
80	7
81	8
82	2
83	8
84	3
85	2
86	3
87	8
88	9
89	0
90	0
91	9
92	3
93	9
94	9
95	7
96	9
97	3
98	4
99	9
100	0