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.

A370550 a(n) is the denominator of the imaginary part of Product_{k=1..n} (1/k + i) where i is the imaginary unit.

Table of values

n a(n)
1 1
2 2
3 1
4 3
5 4
6 24
7 9
8 56
9 2016
10 5184
11 1512
12 33264
13 342144
14 48384
15 2095632
16 100590336
17 12773376
18 146313216
19 905313024
20 6552741888
21 16679706624
22 1216740704256
23 1177309292544
24 835553223622656
25 6380588253118464
26 226043384168448
27 2506659670867968
28 473758677794045952

List of values

[1, 2, 1, 3, 4, 24, 9, 56, 2016, 5184, 1512, 33264, 342144, 48384, 2095632, 100590336, 12773376, 146313216, 905313024, 6552741888, 16679706624, 1216740704256, 1177309292544, 835553223622656, 6380588253118464, 226043384168448, 2506659670867968, 473758677794045952]