A250210 - cp's OEIS frontend

A250210 Irregular triangle read by rows in which row n lists the prime factors of the duodecimal repunit ((12^n-1)/11). (Written in base 10).

n	a(n)
2	13
3	157
4	5
5	13
6	29
7	22621
8	7
9	13
10	19
11	157
12	659
13	4943
14	5
15	13
16	29
17	89
18	233
19	37
20	157
21	80749
22	13
23	19141
24	22621
25	11
26	23
27	266981089
28	5
29	7
30	13
31	19
32	29
33	157
34	20593
35	477517
36	20369233
37	13
38	211
39	659
40	4943
41	13063
42	61
43	157
44	661
45	9781
46	22621
47	5
48	13
49	17
50	29
51	89
52	97
53	233
54	260753

[13, 157, 5, 13, 29, 22621, 7, 13, 19, 157, 659, 4943, 5, 13, 29, 89, 233, 37, 157, 80749, 13, 19141, 22621, 11, 23, 266981089, 5, 7, 13, 19, 29, 157, 20593, 477517, 20369233, 13, 211, 659, 4943, 13063, 61, 157, 661, 9781, 22621, 5, 13, 17, 29, 89, 97, 233, 260753]

cp's OEIS Frontend

A250210 Irregular triangle read by rows in which row n lists the prime factors of the duodecimal repunit ((12^n-1)/11). (Written in base 10).

Table of values

List of values