A089123 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A089123 as a simple table

n	a(n)
1	2
2	7
3	2
4	19
5	2
6	3
7	2
8	67
9	2
10	103
11	2
12	3
13	2
14	199
15	2
16	7
17	2
18	3
19	2
20	13
21	2
22	487
23	2
24	3
25	2
26	7
27	2
28	787
29	2
30	3
31	2
32	13
33	2
34	19
35	2
36	3
37	2
38	1447
39	2
40	7
41	2
42	3
43	2
44	7
45	2
46	13
47	2
48	3
49	2
50	2503
51	2
52	2707
53	2
54	3
55	2
56	43
57	2
58	7
59	2
60	3
61	2
62	3847
63	2
64	4099
65	2
66	3
67	2
68	7
69	2
70	4903
71	2
72	3
73	2
74	5479
75	2
76	5779
77	2
78	3
79	2
80	19
81	2
82	7
83	2
84	3
85	2
86	7

[2,7,2,19,2,3,2,67,2,103,2,3,2,199,2,7,2,3,2,13,2, 487,2,3,2,7,2,787,2,3,2,13,2,19,2,3,2,1447,2,7,2, 3,2,7,2,13,2,3,2,2503,2,2707,2,3,2,43,2,7,2,3,2, 3847,2,4099,2,3,2,7,2,4903,2,3,2,5479,2,5779,2,3, 2,19,2,7,2,3,2,7]