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.

A064538 a(n) is the smallest positive integer such that a(n)*(1^n + 2^n + ... + x^n) is a polynomial in x with integer coefficients.

Table of values

n a(n)
0 1
1 2
2 6
3 4
4 30
5 12
6 42
7 24
8 90
9 20
10 66
11 24
12 2730
13 420
14 90
15 48
16 510
17 180
18 3990
19 840
20 6930
21 660
22 690
23 720
24 13650
25 1092
26 378
27 56
28 870
29 60
30 14322
31 7392
32 117810
33 7140
34 210
35 72
36 1919190
37 103740
38 8190
39 1680
40 94710
41 13860
42 99330
43 9240
44 217350
45 9660
46 9870
47 10080
48 324870

List of values

[1, 2, 6, 4, 30, 12, 42, 24, 90, 20, 66, 24, 2730, 420, 90, 48, 510, 180, 3990, 840, 6930, 660, 690, 720, 13650, 1092, 378, 56, 870, 60, 14322, 7392, 117810, 7140, 210, 72, 1919190, 103740, 8190, 1680, 94710, 13860, 99330, 9240, 217350, 9660, 9870, 10080, 324870]