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.

A171658 Primes ending with the digits 21 which are the only primes in their century.

Table of values

n a(n)
1 155921
2 5649221
3 6726821
4 8598221
5 8825321
6 9953621
7 10303721
8 11948021
9 12117121
10 14645921
11 14821721
12 14866421
13 15275021
14 17270621
15 17524921
16 18497321
17 19193921
18 19731821
19 20741621
20 21721621
21 22170221
22 23009521
23 24257921
24 24579221
25 24919721

List of values

[155921, 5649221, 6726821, 8598221, 8825321, 9953621, 10303721, 11948021, 12117121, 14645921, 14821721, 14866421, 15275021, 17270621, 17524921, 18497321, 19193921, 19731821, 20741621, 21721621, 22170221, 23009521, 24257921, 24579221, 24919721]

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

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