A190355 - cp's OEIS frontend

A190355 Numbers n such that d(n-1)=d(n+1)=12 where d(k)=A000005(k) (number of divisors of k).

n	a(n)
1	199
2	307
3	341
4	349
5	351
6	415
7	491
8	737
9	739
10	851
11	949
12	1013
13	1061
14	1149
15	1205
16	1211
17	1275
18	1277
19	1313
20	1315
21	1421
22	1667
23	1695
24	1747
25	1925
26	2049
27	2149
28	2276
29	2357
30	2365
31	2683
32	2717
33	2827
34	2889
35	2891
36	2949
37	3051
38	3115
39	3173
40	3259
41	3475
42	3581
43	3651
44	3797
45	4013
46	4045
47	4149
48	4193
49	4449
50	4597
51	4627
52	4654
53	4843

[199, 307, 341, 349, 351, 415, 491, 737, 739, 851, 949, 1013, 1061, 1149, 1205, 1211, 1275, 1277, 1313, 1315, 1421, 1667, 1695, 1747, 1925, 2049, 2149, 2276, 2357, 2365, 2683, 2717, 2827, 2889, 2891, 2949, 3051, 3115, 3173, 3259, 3475, 3581, 3651, 3797, 4013, 4045, 4149, 4193, 4449, 4597, 4627, 4654, 4843]

cp's OEIS Frontend

A190355 Numbers n such that d(n-1)=d(n+1)=12 where d(k)=A000005(k) (number of divisors of k).

Table of values

List of values