A278311 - cp's OEIS frontend

A278311 Numbers n such that n-1 and n+1 have the same number of prime factors as n (with multiplicity).

n	a(n)
1	34
2	86
3	94
4	122
5	142
6	171
7	202
8	214
9	218
10	245
11	285
12	302
13	394
14	429
15	435
16	446
17	507
18	603
19	604
20	605
21	634
22	638
23	698
24	842
25	922
26	963
27	1042
28	1075
29	1084
30	1085
31	1131
32	1138
33	1245
34	1262
35	1275
36	1310
37	1346
38	1402
39	1413
40	1431
41	1435
42	1449
43	1491
44	1533
45	1557
46	1587
47	1605
48	1635
49	1642
50	1676
51	1762
52	1772
53	1838
54	1886
55	1894
56	1925
57	1942

[34, 86, 94, 122, 142, 171, 202, 214, 218, 245, 285, 302, 394, 429, 435, 446, 507, 603, 604, 605, 634, 638, 698, 842, 922, 963, 1042, 1075, 1084, 1085, 1131, 1138, 1245, 1262, 1275, 1310, 1346, 1402, 1413, 1431, 1435, 1449, 1491, 1533, 1557, 1587, 1605, 1635, 1642, 1676, 1762, 1772, 1838, 1886, 1894, 1925, 1942]

cp's OEIS Frontend

A278311 Numbers n such that n-1 and n+1 have the same number of prime factors as n (with multiplicity).

Table of values

List of values