A073249 - cp's OEIS frontend

A073249 Nonprime squarefree numbers n such that both n-1 and n+1 are not squarefree and not prime.

n	a(n)
1	26
2	51
3	55
4	91
5	161
6	170
7	235
8	249
9	295
10	305
11	339
12	341
13	362
14	377
15	413
16	415
17	451
18	485
19	489
20	530
21	551
22	559
23	579
24	595
25	629
26	638
27	649
28	651
29	665
30	667
31	685
32	687
33	703
34	721
35	723
36	737
37	749
38	849
39	851
40	874
41	917
42	926
43	949
44	951
45	955
46	962
47	989
48	1015
49	1027
50	1057
51	1059

[26, 51, 55, 91, 161, 170, 235, 249, 295, 305, 339, 341, 362, 377, 413, 415, 451, 485, 489, 530, 551, 559, 579, 595, 629, 638, 649, 651, 665, 667, 685, 687, 703, 721, 723, 737, 749, 849, 851, 874, 917, 926, 949, 951, 955, 962, 989, 1015, 1027, 1057, 1059]

cp's OEIS Frontend

A073249 Nonprime squarefree numbers n such that both n-1 and n+1 are not squarefree and not prime.

Table of values

List of values