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.

A200459 Number of -n..n arrays x(0..6) of 7 elements with zero sum and nonzero first and second differences.

Table of values

n a(n)
1 14
2 1582
3 19802
4 115140
5 451708
6 1375006
7 3513884
8 7910100
9 16176994
10 30639164
11 54582252
12 92444962
13 150029642
14 234839570
15 356372880
16 526276044
17 758938962
18 1071722528
19 1485196016
20 2023848468
21 2716453852
22 3596089776
23 4701336350

List of values

[14, 1582, 19802, 115140, 451708, 1375006, 3513884, 7910100, 16176994, 30639164, 54582252, 92444962, 150029642, 234839570, 356372880, 526276044, 758938962, 1071722528, 1485196016, 2023848468, 2716453852, 3596089776, 4701336350]