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.

A061914 Let H_n = n-th Hilbert matrix; sequence gives 1 / ( det(H_n) * denominator(permanent(H_n)) ).

Table of values

n a(n)
1 1
2 1
3 1
4 27
5 567
6 1
7 1
8 1
9 7
10 9
11 5103
12 1275989841
13 992436543
14 48629390607
15 169706648853
16 40257567
17 63
18 1
19 7
20 31
21 1
22 3969
23 25865973
24 117649
25 117649
26 16807
27 49
28 9
29 81
30 117369
31 59049
32 33480783
33 930196594089
34 4238886345135097131
35 169560200598623521407

List of values

[1, 1, 1, 27, 567, 1, 1, 1, 7, 9, 5103, 1275989841, 992436543, 48629390607, 169706648853, 40257567, 63, 1, 7, 31, 1, 3969, 25865973, 117649, 117649, 16807, 49, 9, 81, 117369, 59049, 33480783, 930196594089, 4238886345135097131, 169560200598623521407]