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.

A023107 Largest integer in which every prefix is prime in base n (written in base 10).

Table of values

n a(n)
3 71
4 191
5 2437
6 108863
7 6841
8 4497359
9 1355840309
10 73939133
11 6774006887
12 18704078369
13 122311273757
14 6525460043032393259
15 927920056668659
16 16778492037124607
17 4928397730238375565449
18 5228233855704101657
19 3013357583408354653
20 1437849529085279949589
21 101721177350595997080671
22 185720479816277907890970001

List of values

[71, 191, 2437, 108863, 6841, 4497359, 1355840309, 73939133, 6774006887, 18704078369, 122311273757, 6525460043032393259, 927920056668659, 16778492037124607, 4928397730238375565449, 5228233855704101657, 3013357583408354653, 1437849529085279949589, 101721177350595997080671, 185720479816277907890970001]

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

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