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.

A119697 a(n) = Fibonacci(n)*n*binomial(2*n,n)/(n+1).

Table of values

n a(n)
0 0
1 1
2 4
3 30
4 168
5 1050
6 6336
7 39039
8 240240
9 1487772
10 9237800
11 57551494
12 359444736
13 2250244100
14 14115694320
15 88707831750
16 558368324640
17 3519726403710
18 22215931214400
19 140389620550410
20 888125492826000
21 5623962934819320
22 35645449061816880
23 226114365012465150

List of values

[0, 1, 4, 30, 168, 1050, 6336, 39039, 240240, 1487772, 9237800, 57551494, 359444736, 2250244100, 14115694320, 88707831750, 558368324640, 3519726403710, 22215931214400, 140389620550410, 888125492826000, 5623962934819320, 35645449061816880, 226114365012465150]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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