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.

A179826 Primes that can be obtained from composite numbers by interchanging the first and last digits.

Table of values

n a(n)
1 41
2 61
3 2
4 3
5 23
6 43
7 53
8 83
9 5
10 7
11 47
12 67
13 19
14 29
15 59
16 89
17 401
18 601
19 11
20 211
21 811
22 911
23 421
24 521
25 821
26 31
27 331
28 431
29 631
30 41
31 241
32 541
33 641
34 251
35 61
36 461
37 661
38 71
39 271
40 571
41 281
42 881
43 491
44 691
45 2
46 3
47 103
48 503
49 13
50 613
51 23
52 223
53 523
54 823
55 233
56 433
57 43
58 443
59 643
60 53

List of values

[41, 61, 2, 3, 23, 43, 53, 83, 5, 7, 47, 67, 19, 29, 59, 89, 401, 601, 11, 211, 811, 911, 421, 521, 821, 31, 331, 431, 631, 41, 241, 541, 641, 251, 61, 461, 661, 71, 271, 571, 281, 881, 491, 691, 2, 3, 103, 503, 13, 613, 23, 223, 523, 823, 233, 433, 43, 443, 643, 53]

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

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