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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.

A006378 Prime self (or Colombian) numbers: primes not expressible as the sum of an integer and its digit sum.

Table of values

n a(n)
1 3
2 5
3 7
4 31
5 53
6 97
7 211
8 233
9 277
10 367
11 389
12 457
13 479
14 547
15 569
16 613
17 659
18 727
19 839
20 883
21 929
22 1021
23 1087
24 1109
25 1223
26 1289
27 1447
28 1559
29 1627
30 1693
31 1783
32 1873
33 2099
34 2213
35 2347
36 2437
37 2459
38 2503
39 2549
40 2593
41 2617
42 2683
43 2729
44 2819
45 2953
46 3023
47 3067

List of values

[3, 5, 7, 31, 53, 97, 211, 233, 277, 367, 389, 457, 479, 547, 569, 613, 659, 727, 839, 883, 929, 1021, 1087, 1109, 1223, 1289, 1447, 1559, 1627, 1693, 1783, 1873, 2099, 2213, 2347, 2437, 2459, 2503, 2549, 2593, 2617, 2683, 2729, 2819, 2953, 3023, 3067]

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

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