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.

A377294 a(n) is the least n-digit prime which is the sum of the squares of three consecutive numbers, or -1 if no such prime exists.

Table of values

n a(n)
1 5
2 29
3 149
4 1877
5 11909
6 100469
7 1026677
8 10013789
9 100676549
10 1000611509
11 10007613149
12 100003082789
13 1000092600389
14 10000275414869
15 100000426365677
16 1000004865589109
17 10000013191662677
18 100000034139489269
19 1000000221045632669
20 10000000313838962309
21 100000002116695737029

List of values

[5, 29, 149, 1877, 11909, 100469, 1026677, 10013789, 100676549, 1000611509, 10007613149, 100003082789, 1000092600389, 10000275414869, 100000426365677, 1000004865589109, 10000013191662677, 100000034139489269, 1000000221045632669, 10000000313838962309, 100000002116695737029]

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

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