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.

A380878 Numbers k such that k*(k+1) shares no decimal digits with k or k+1.

Table of values

n a(n)
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 15
9 17
10 18
11 22
12 24
13 32
14 33
15 34
16 37
17 42
18 43
19 44
20 45
21 47
22 48
23 53
24 54
25 55
26 56
27 57
28 58
29 65
30 66
31 76
32 77
33 78
34 83
35 85
36 92
37 143
38 144
39 148
40 154
41 156
42 165
43 175
44 188
45 194
46 195
47 222
48 232
49 237
50 242
51 257
52 265
53 292
54 294
55 303
56 307
57 312
58 313
59 322
60 332
61 333
62 334
63 343
64 344
65 375
66 377
67 387
68 392

List of values

[2, 3, 4, 5, 6, 7, 8, 15, 17, 18, 22, 24, 32, 33, 34, 37, 42, 43, 44, 45, 47, 48, 53, 54, 55, 56, 57, 58, 65, 66, 76, 77, 78, 83, 85, 92, 143, 144, 148, 154, 156, 165, 175, 188, 194, 195, 222, 232, 237, 242, 257, 265, 292, 294, 303, 307, 312, 313, 322, 332, 333, 334, 343, 344, 375, 377, 387, 392]

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

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