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.

A274117 a(n) = ((6n-5)!!!+(6n-4)!!!)/(6n-3).

Table of values

n a(n)
1 1
2 12
3 1064
4 252160
5 115315200
6 86449126400
7 96313245952000
8 149342026677043200
9 307513455044956160000
10 811744577542368870400000
11 2672529840751688498380800000
12 10735527449319396895332761600000
13 51677469466519591978527317032960000
14 293652804750537765304678163152896000000

List of values

[1, 12, 1064, 252160, 115315200, 86449126400, 96313245952000, 149342026677043200, 307513455044956160000, 811744577542368870400000, 2672529840751688498380800000, 10735527449319396895332761600000, 51677469466519591978527317032960000, 293652804750537765304678163152896000000]