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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.

A236381 Smallest value of x such that x^2 + y^2 = P, where P is the product of the first n primes of the form 4k + 1, and 0 < x < y.

Table of values

n a(n)
1 1
2 1
3 4
4 2
5 64
6 59
7 1342
8 1076
9 4268
10 10739
11 64387
12 818998
13 3226976
14 26444853
15 53155423
16 1175849126
17 13396689992
18 2368807981
19 907313696551
20 483703442648
21 2835669288809
22 98713800566163
23 24423236756993
24 6054940274199961
25 17628259859562384
26 128658404383205917
27 3865377837569367511

List of values

[1, 1, 4, 2, 64, 59, 1342, 1076, 4268, 10739, 64387, 818998, 3226976, 26444853, 53155423, 1175849126, 13396689992, 2368807981, 907313696551, 483703442648, 2835669288809, 98713800566163, 24423236756993, 6054940274199961, 17628259859562384, 128658404383205917, 3865377837569367511]

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

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