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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.

A226095 Primes formed by concatenation (exponent then prime) of prime factorizations of the positive integers.

Table of values

n a(n)
1 13
2 1213
3 17
4 23
5 2213
6 113
7 1217
8 1223
9 12113
10 131
11 137
12 12119
13 22111
14 3217
15 167
16 173
17 179
18 43
19 221317
20 12143
21 22123
22 197
23 1103
24 1109
25 4217
26 22129
27 17117
28 211
29 12161
30 32117
31 13147
32 1327
33 1151
34 32119
35 23117
36 15131
37 17123
38 1163
39 1213129
40 13159
41 1181
42 1217113

List of values

[13, 1213, 17, 23, 2213, 113, 1217, 1223, 12113, 131, 137, 12119, 22111, 3217, 167, 173, 179, 43, 221317, 12143, 22123, 197, 1103, 1109, 4217, 22129, 17117, 211, 12161, 32117, 13147, 1327, 1151, 32119, 23117, 15131, 17123, 1163, 1213129, 13159, 1181, 1217113]

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

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