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.

A165636 a(n) = A091137(n)/2^n.

Table of values

n a(n)
0 1
1 1
2 3
3 3
4 45
5 45
6 945
7 945
8 14175
9 14175
10 467775
11 467775
12 638512875
13 638512875
14 1915538625
15 1915538625
16 488462349375
17 488462349375
18 194896477400625
19 194896477400625
20 32157918771103125
21 32157918771103125
22 2218896395206115625
23 2218896395206115625
24 3028793579456347828125
25 3028793579456347828125
26 9086380738369043484375

List of values

[1, 1, 3, 3, 45, 45, 945, 945, 14175, 14175, 467775, 467775, 638512875, 638512875, 1915538625, 1915538625, 488462349375, 488462349375, 194896477400625, 194896477400625, 32157918771103125, 32157918771103125, 2218896395206115625, 2218896395206115625, 3028793579456347828125, 3028793579456347828125, 9086380738369043484375]