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.

A277374 a(n) = 2^n*floor(n/2)!*Gamma(ceiling((n+1)/2),-1/4)*exp(-1/4).

Table of values

n a(n)
0 1
1 2
2 3
3 6
4 50
5 100
6 1794
7 3588
8 114840
9 229680
10 11483880
11 22967760
12 1653679440
13 3307358880
14 324121165200
15 648242330400
16 82975018331520
17 165950036663040
18 26883905939049600
19 53767811878099200
20 10753562375623468800
21 21507124751246937600
22 5204724189801718982400

List of values

[1, 2, 3, 6, 50, 100, 1794, 3588, 114840, 229680, 11483880, 22967760, 1653679440, 3307358880, 324121165200, 648242330400, 82975018331520, 165950036663040, 26883905939049600, 53767811878099200, 10753562375623468800, 21507124751246937600, 5204724189801718982400]