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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A076156 Numbers n such that Omega(n+1) = Omega(n)+1, where Omega(m) (A001222) denotes the number of prime factors of m, counting multiplicity.

Table of values

n a(n)
1 1
2 3
3 5
4 13
5 26
6 37
7 49
8 51
9 61
10 62
11 65
12 69
13 73
14 74
15 77
16 91
17 99
18 115
19 123
20 125
21 129
22 146
23 157
24 169
25 185
26 187
27 188
28 193
29 194
30 195
31 206
32 221
33 231
34 235
35 237
36 254
37 265
38 267
39 274
40 275
41 277
42 278
43 289
44 291
45 309
46 313
47 321
48 343
49 355
50 362
51 363
52 365
53 374
54 386
55 397
56 398

List of values

[1, 3, 5, 13, 26, 37, 49, 51, 61, 62, 65, 69, 73, 74, 77, 91, 99, 115, 123, 125, 129, 146, 157, 169, 185, 187, 188, 193, 194, 195, 206, 221, 231, 235, 237, 254, 265, 267, 274, 275, 277, 278, 289, 291, 309, 313, 321, 343, 355, 362, 363, 365, 374, 386, 397, 398]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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