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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.

A231963 Concatenate n with its UPC check digit, a(n) = 10*n + A237042(n).

Table of values

n a(n)
1 17
2 24
3 31
4 48
5 55
6 62
7 79
8 86
9 93
10 109
11 116
12 123
13 130
14 147
15 154
16 161
17 178
18 185
19 192
20 208
21 215
22 222
23 239
24 246
25 253
26 260
27 277
28 284
29 291
30 307
31 314
32 321
33 338
34 345
35 352
36 369
37 376
38 383
39 390
40 406
41 413
42 420
43 437
44 444
45 451
46 468
47 475
48 482
49 499
50 505
51 512
52 529
53 536
54 543
55 550
56 567
57 574
58 581

List of values

[17, 24, 31, 48, 55, 62, 79, 86, 93, 109, 116, 123, 130, 147, 154, 161, 178, 185, 192, 208, 215, 222, 239, 246, 253, 260, 277, 284, 291, 307, 314, 321, 338, 345, 352, 369, 376, 383, 390, 406, 413, 420, 437, 444, 451, 468, 475, 482, 499, 505, 512, 529, 536, 543, 550, 567, 574, 581]

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

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