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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.

A332300 The least prime factor of the numerator of Bernoulli(2*n), or 1 if the numerator is 1.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 5
6 691
7 7
8 3617
9 43867
10 283
11 11
12 103
13 13
14 7
15 5
16 37
17 17
18 26315271553053477373
19 19
20 137616929
21 1520097643918070802691
22 11
23 23
24 653
25 5
26 13
27 39409
28 7
29 29
30 2003
31 31
32 1226592271
33 11
34 17
35 5
36 3112655297839
37 37
38 19
39 13
40 631
41 41
42 233
43 43
44 11
45 5
46 23
47 47
48 7823741903

List of values

[1, 1, 1, 1, 1, 5, 691, 7, 3617, 43867, 283, 11, 103, 13, 7, 5, 37, 17, 26315271553053477373, 19, 137616929, 1520097643918070802691, 11, 23, 653, 5, 13, 39409, 7, 29, 2003, 31, 1226592271, 11, 17, 5, 3112655297839, 37, 19, 13, 631, 41, 233, 43, 11, 5, 23, 47, 7823741903]

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

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