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.

A317133 G.f.: Sum_{n>=0} binomial(4*(n+1), n)/(n+1) * x^n / (1+x)^(n+1).

Table of values

n a(n)
0 1
1 3
2 15
3 85
4 526
5 3438
6 23358
7 163306
8 1167235
9 8490513
10 62648451
11 467769217
12 3527692298
13 26832220834
14 205601792340
15 1585604105312
16 12297768490441
17 95861469636203
18 750611119223931
19 5901214027721577
20 46564408929573723
21 368644188180241449
22 2927350250765841801
23 23310167641788680947
24 186089697960587977233
25 1489085453187335910243

List of values

[1, 3, 15, 85, 526, 3438, 23358, 163306, 1167235, 8490513, 62648451, 467769217, 3527692298, 26832220834, 205601792340, 1585604105312, 12297768490441, 95861469636203, 750611119223931, 5901214027721577, 46564408929573723, 368644188180241449, 2927350250765841801, 23310167641788680947, 186089697960587977233, 1489085453187335910243]