A276457 - cp's OEIS frontend

A276457 a(n) is the number of times that a(n-1) appears in the concatenation of all numbers from a(0) to a(n-2), with a(0) = 0.

n	a(n)
0	0
1	0
2	1
3	0
4	2
5	0
6	3
7	0
8	4
9	0
10	5
11	0
12	6
13	0
14	7
15	0
16	8
17	0
18	9
19	0
20	10
21	1
22	2
23	1
24	3
25	1
26	4
27	1
28	5
29	1
30	6
31	1
32	7
33	1
34	8
35	1
36	9
37	1
38	10
39	2
40	2
41	3
42	2
43	4
44	2
45	5
46	2
47	6
48	2
49	7
50	2
51	8
52	2
53	9
54	2
55	10
56	3
57	3
58	4
59	3
60	5
61	3
62	6
63	3
64	7
65	3
66	8
67	3
68	9
69	3
70	10
71	4
72	4
73	5
74	4
75	6
76	4
77	7
78	4
79	8
80	4
81	9
82	4
83	10
84	5
85	5
86	6
87	5
88	7
89	5
90	8
91	5
92	9
93	5
94	10
95	6
96	6
97	7
98	6
99	8
100	6
101	9
102	6
103	10
104	7
105	7
106	8
107	7
108	9
109	7
110	10

[0, 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7, 0, 8, 0, 9, 0, 10, 1, 2, 1, 3, 1, 4, 1, 5, 1, 6, 1, 7, 1, 8, 1, 9, 1, 10, 2, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7, 2, 8, 2, 9, 2, 10, 3, 3, 4, 3, 5, 3, 6, 3, 7, 3, 8, 3, 9, 3, 10, 4, 4, 5, 4, 6, 4, 7, 4, 8, 4, 9, 4, 10, 5, 5, 6, 5, 7, 5, 8, 5, 9, 5, 10, 6, 6, 7, 6, 8, 6, 9, 6, 10, 7, 7, 8, 7, 9, 7, 10]

cp's OEIS Frontend

A276457 a(n) is the number of times that a(n-1) appears in the concatenation of all numbers from a(0) to a(n-2), with a(0) = 0.

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	0
4	2
5	0
6	3
7	0
8	4
9	0
10	5
11	0
12	6
13	0
14	7
15	0
16	8
17	0
18	9
19	0
20	10
21	1
22	2
23	1
24	3
25	1
26	4
27	1
28	5
29	1
30	6
31	1
32	7
33	1
34	8
35	1
36	9
37	1
38	10
39	2
40	2
41	3
42	2
43	4
44	2
45	5
46	2
47	6
48	2
49	7
50	2
51	8
52	2
53	9
54	2
55	10
56	3
57	3
58	4
59	3
60	5
61	3
62	6
63	3
64	7
65	3
66	8
67	3
68	9
69	3
70	10
71	4
72	4
73	5
74	4
75	6
76	4
77	7
78	4
79	8
80	4
81	9
82	4
83	10
84	5
85	5
86	6
87	5
88	7
89	5
90	8
91	5
92	9
93	5
94	10
95	6
96	6
97	7
98	6
99	8
100	6
101	9
102	6
103	10
104	7
105	7
106	8
107	7
108	9
109	7
110	10

n	a(n)
0	0
1	0
2	1
3	0
4	2
5	0
6	3
7	0
8	4
9	0
10	5
11	0
12	6
13	0
14	7
15	0
16	8
17	0
18	9
19	0
20	10
21	1
22	2
23	1
24	3
25	1
26	4
27	1
28	5
29	1
30	6
31	1
32	7
33	1
34	8
35	1
36	9
37	1
38	10
39	2
40	2
41	3
42	2
43	4
44	2
45	5
46	2
47	6
48	2
49	7
50	2
51	8
52	2
53	9
54	2
55	10
56	3
57	3
58	4
59	3
60	5
61	3
62	6
63	3
64	7
65	3
66	8
67	3
68	9
69	3
70	10
71	4
72	4
73	5
74	4
75	6
76	4
77	7
78	4
79	8
80	4
81	9
82	4
83	10
84	5
85	5
86	6
87	5
88	7
89	5
90	8
91	5
92	9
93	5
94	10
95	6
96	6
97	7
98	6
99	8
100	6
101	9
102	6
103	10
104	7
105	7
106	8
107	7
108	9
109	7
110	10

n	a(n)
0	0
1	0
2	1
3	0
4	2
5	0
6	3
7	0
8	4
9	0
10	5
11	0
12	6
13	0
14	7
15	0
16	8
17	0
18	9
19	0
20	10
21	1
22	2
23	1
24	3
25	1
26	4
27	1
28	5
29	1
30	6
31	1
32	7
33	1
34	8
35	1
36	9
37	1
38	10
39	2
40	2
41	3
42	2
43	4
44	2
45	5
46	2
47	6
48	2
49	7
50	2
51	8
52	2
53	9
54	2
55	10
56	3
57	3
58	4
59	3
60	5
61	3
62	6
63	3
64	7
65	3
66	8
67	3
68	9
69	3
70	10
71	4
72	4
73	5
74	4
75	6
76	4
77	7
78	4
79	8
80	4
81	9
82	4
83	10
84	5
85	5
86	6
87	5
88	7
89	5
90	8
91	5
92	9
93	5
94	10
95	6
96	6
97	7
98	6
99	8
100	6
101	9
102	6
103	10
104	7
105	7
106	8
107	7
108	9
109	7
110	10