A135157 - cp's OEIS frontend

A135157 Number of primitive (no repeated characters) and irreducible (not the concatenation of generatable strings) strings obtained from abc by iterated repetition of substrings in place.

n	a(n)
0	1
1	0
2	2
3	0
4	3
5	1
6	4
7	0
8	5
9	2
10	6
11	0
12	7
13	3
14	8
15	0
16	9
17	6
18	10
19	0
20	11
21	12
22	12
23	4
24	13
25	24
26	14
27	23
28	15
29	54
30	16
31	91
32	17
33	149
34	18
35	326
36	19
37	484
38	20
39	1144
40	21
41	1741
42	22
43	4015
44	23
45	6589
46	24
47	14296
48	25
49	25299
50	26
51	52077
52	27
53	97264
54	28
55	193781
56	29
57	373996
58	30
59	733076

[1, 0, 2, 0, 3, 1, 4, 0, 5, 2, 6, 0, 7, 3, 8, 0, 9, 6, 10, 0, 11, 12, 12, 4, 13, 24, 14, 23, 15, 54, 16, 91, 17, 149, 18, 326, 19, 484, 20, 1144, 21, 1741, 22, 4015, 23, 6589, 24, 14296, 25, 25299, 26, 52077, 27, 97264, 28, 193781, 29, 373996, 30, 733076]

cp's OEIS Frontend

A135157 Number of primitive (no repeated characters) and irreducible (not the concatenation of generatable strings) strings obtained from abc by iterated repetition of substrings in place.

Table of values

List of values