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.

A295439 a(n) = (9*n)!*(4*n)!/((8*n)!*(3*n)!*(2*n)!).

Table of values

n a(n)
0 1
1 18
2 714
3 32175
4 1531530
5 75167268
6 3762157035
7 190878381495
8 9781950631050
9 505159120481400
10 26246321470970964
11 1370400311694822954
12 71844872838316074315
13 3779480916094795749180
14 199405648908172208299875
15 10547211550872819183622800
16 559103542410000371874708618

List of values

[1, 18, 714, 32175, 1531530, 75167268, 3762157035, 190878381495, 9781950631050, 505159120481400, 26246321470970964, 1370400311694822954, 71844872838316074315, 3779480916094795749180, 199405648908172208299875, 10547211550872819183622800, 559103542410000371874708618]