A333055 - cp's OEIS frontend

A333055 Numbers k such that k and k+1 have different (ordered) prime signatures and d(k) = d(k+1), where d(k) is the number of divisors of k (A000005).

n	a(n)
1	26
2	104
3	189
4	231
5	242
6	243
7	344
8	374
9	663
10	664
11	735
12	776
13	782
14	874
15	903
16	1015
17	1029
18	1095
19	1106
20	1112
21	1161
22	1208
23	1269
24	1335
25	1374
26	1544
27	1625
28	1809
29	1832
30	1917
31	1952
32	1970
33	2055
34	2133
35	2241
36	2247
37	2264
38	2343
39	2344
40	2504
41	2655
42	2696
43	2726
44	2781
45	2874
46	2936

[26, 104, 189, 231, 242, 243, 344, 374, 663, 664, 735, 776, 782, 874, 903, 1015, 1029, 1095, 1106, 1112, 1161, 1208, 1269, 1335, 1374, 1544, 1625, 1809, 1832, 1917, 1952, 1970, 2055, 2133, 2241, 2247, 2264, 2343, 2344, 2504, 2655, 2696, 2726, 2781, 2874, 2936]

cp's OEIS Frontend

A333055 Numbers k such that k and k+1 have different (ordered) prime signatures and d(k) = d(k+1), where d(k) is the number of divisors of k (A000005).

Table of values

List of values