A327036 - cp's OEIS frontend

A327036 a(0)=0; for n > 0, a(n) is the number of distinct digit strings that occur at least twice (not counting overlapping occurrences) in the concatenation of all previous terms.

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

[0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 12, 13, 13, 14, 15, 15, 16, 17, 17, 18, 19, 19, 21, 22, 24, 24, 25, 26, 26, 27, 28, 28, 29, 30, 30, 31, 32, 33, 36, 36, 37, 38, 38, 39, 40, 40, 41, 43, 44, 47, 47, 48, 49, 49, 51, 51, 54, 55, 58, 58, 59, 60, 60]

cp's OEIS Frontend

A327036 a(0)=0; for n > 0, a(n) is the number of distinct digit strings that occur at least twice (not counting overlapping occurrences) in the concatenation of all previous terms.

Table of values

List of values

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

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

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