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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.

A212605 a(n) is the smallest prime such that it and the previous four primes are all of the form x^2 + n * y^2.

Table of values

n a(n)
1 2633
2 587
3 1777
4 2633
5 239521
6 862471
7 2017
8 208457
9 586273
10 147451
11 4951
12 586273
13 207073
14 612553
15 102871
16 208457
17 301681
18 351439
19 242447
20 2076901
21 55948657
22 27487
23 119503
24 9425257
25 239521
26 5188507
27 128467
28 75853
29 74049413

List of values

[2633, 587, 1777, 2633, 239521, 862471, 2017, 208457, 586273, 147451, 4951, 586273, 207073, 612553, 102871, 208457, 301681, 351439, 242447, 2076901, 55948657, 27487, 119503, 9425257, 239521, 5188507, 128467, 75853, 74049413]

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

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