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.

A127228 a(n) = numerator of ((n + 4)! - (n - 4)!)/(n!).

Table of values

n a(n)
4 40319
5 362879
6 1814399
7 6652799
8 19958399
9 51891839
10 121080959
11 259459199
12 518918399
13 980179199
14 1764322559
15 3047466239
16 5079110399
17 8204716799
18 12893126399
19 19769460479
20 29654190719
21 43609103999
22 62990927999

List of values

[40319, 362879, 1814399, 6652799, 19958399, 51891839, 121080959, 259459199, 518918399, 980179199, 1764322559, 3047466239, 5079110399, 8204716799, 12893126399, 19769460479, 29654190719, 43609103999, 62990927999]

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

Content is available under The OEIS End-User License Agreement.