A144543 - cp's OEIS frontend

A144543 Unique sequence of digits a(0), a(1), a(2), .. such that for all k >= 2, the number A(k) := Sum_{n = 0..k-1 } a(n)*10^n satisfies 15^A(k) == A(k) mod 10^k.

n	a(n)
0	5
1	7
2	3
3	9
4	5
5	8
6	0
7	8
8	3
9	5
10	6
11	7
12	0
13	9
14	6
15	0
16	8
17	6
18	4
19	4
20	9
21	3
22	4
23	6
24	1
25	1
26	9
27	2
28	8
29	3
30	7
31	9
32	3
33	8
34	6
35	2
36	4
37	7
38	7
39	8
40	5
41	8
42	6
43	5
44	4
45	4
46	7
47	2
48	3
49	9
50	3
51	0
52	4
53	9
54	4
55	3
56	1
57	4
58	4
59	1
60	9
61	0
62	4
63	9
64	3
65	0
66	0
67	1
68	2
69	2
70	1
71	9
72	8
73	5
74	2
75	4
76	5
77	2
78	4
79	5
80	3
81	6
82	5
83	5
84	8
85	6
86	7
87	2
88	7
89	5
90	4
91	7
92	7
93	4
94	6
95	9
96	1
97	8
98	3
99	8
100	3
101	7
102	1
103	5
104	0

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

cp's OEIS Frontend

A144543 Unique sequence of digits a(0), a(1), a(2), .. such that for all k >= 2, the number A(k) := Sum_{n = 0..k-1 } a(n)*10^n satisfies 15^A(k) == A(k) mod 10^k.

Table of values

List of values

n	a(n)
0	5
1	7
2	3
3	9
4	5
5	8
6	0
7	8
8	3
9	5
10	6
11	7
12	0
13	9
14	6
15	0
16	8
17	6
18	4
19	4
20	9
21	3
22	4
23	6
24	1
25	1
26	9
27	2
28	8
29	3
30	7
31	9
32	3
33	8
34	6
35	2
36	4
37	7
38	7
39	8
40	5
41	8
42	6
43	5
44	4
45	4
46	7
47	2
48	3
49	9
50	3
51	0
52	4
53	9
54	4
55	3
56	1
57	4
58	4
59	1
60	9
61	0
62	4
63	9
64	3
65	0
66	0
67	1
68	2
69	2
70	1
71	9
72	8
73	5
74	2
75	4
76	5
77	2
78	4
79	5
80	3
81	6
82	5
83	5
84	8
85	6
86	7
87	2
88	7
89	5
90	4
91	7
92	7
93	4
94	6
95	9
96	1
97	8
98	3
99	8
100	3
101	7
102	1
103	5
104	0

n	a(n)
0	5
1	7
2	3
3	9
4	5
5	8
6	0
7	8
8	3
9	5
10	6
11	7
12	0
13	9
14	6
15	0
16	8
17	6
18	4
19	4
20	9
21	3
22	4
23	6
24	1
25	1
26	9
27	2
28	8
29	3
30	7
31	9
32	3
33	8
34	6
35	2
36	4
37	7
38	7
39	8
40	5
41	8
42	6
43	5
44	4
45	4
46	7
47	2
48	3
49	9
50	3
51	0
52	4
53	9
54	4
55	3
56	1
57	4
58	4
59	1
60	9
61	0
62	4
63	9
64	3
65	0
66	0
67	1
68	2
69	2
70	1
71	9
72	8
73	5
74	2
75	4
76	5
77	2
78	4
79	5
80	3
81	6
82	5
83	5
84	8
85	6
86	7
87	2
88	7
89	5
90	4
91	7
92	7
93	4
94	6
95	9
96	1
97	8
98	3
99	8
100	3
101	7
102	1
103	5
104	0

n	a(n)
0	5
1	7
2	3
3	9
4	5
5	8
6	0
7	8
8	3
9	5
10	6
11	7
12	0
13	9
14	6
15	0
16	8
17	6
18	4
19	4
20	9
21	3
22	4
23	6
24	1
25	1
26	9
27	2
28	8
29	3
30	7
31	9
32	3
33	8
34	6
35	2
36	4
37	7
38	7
39	8
40	5
41	8
42	6
43	5
44	4
45	4
46	7
47	2
48	3
49	9
50	3
51	0
52	4
53	9
54	4
55	3
56	1
57	4
58	4
59	1
60	9
61	0
62	4
63	9
64	3
65	0
66	0
67	1
68	2
69	2
70	1
71	9
72	8
73	5
74	2
75	4
76	5
77	2
78	4
79	5
80	3
81	6
82	5
83	5
84	8
85	6
86	7
87	2
88	7
89	5
90	4
91	7
92	7
93	4
94	6
95	9
96	1
97	8
98	3
99	8
100	3
101	7
102	1
103	5
104	0