cp's OEIS Frontend

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.

A242422 Numbers in whose prime factorization the indices of primes sum to a triangular number.

Table of values

n a(n)
1 1
2 2
3 5
4 6
5 8
6 13
7 21
8 22
9 25
10 27
11 28
12 29
13 30
14 36
15 40
16 46
17 47
18 48
19 57
20 64
21 73
22 76
23 85
24 86
25 91
26 102
27 107
28 117
29 121
30 123
31 130
32 136
33 142
34 147
35 151
36 154
37 156
38 164
39 165
40 175
41 185
42 189
43 196
44 197
45 198
46 201
47 206
48 208
49 210
50 217
51 220
52 222
53 225
54 243
55 250
56 252
57 257
58 264
59 268
60 270
61 279
62 280
63 296
64 298
65 299
66 300

List of values

[1, 2, 5, 6, 8, 13, 21, 22, 25, 27, 28, 29, 30, 36, 40, 46, 47, 48, 57, 64, 73, 76, 85, 86, 91, 102, 107, 117, 121, 123, 130, 136, 142, 147, 151, 154, 156, 164, 165, 175, 185, 189, 196, 197, 198, 201, 206, 208, 210, 217, 220, 222, 225, 243, 250, 252, 257, 264, 268, 270, 279, 280, 296, 298, 299, 300]

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

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