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.

A202965 Number of arrays of 5 integers in -n..n with sum zero and adjacent elements differing in absolute value.

Table of values

n a(n)
1 2
2 82
3 414
4 1562
5 4048
6 9010
7 17296
8 30648
9 50232
10 78388
11 116614
12 167824
13 233858
14 318234
15 423094
16 552554
17 709104
18 897434
19 1120360
20 1383176
21 1689016
22 2043772
23 2450910
24 2916896
25 3445538
26 4043906
27 4716110
28 5469818
29 6309488
30 7243362
31 8276224

List of values

[2, 82, 414, 1562, 4048, 9010, 17296, 30648, 50232, 78388, 116614, 167824, 233858, 318234, 423094, 552554, 709104, 897434, 1120360, 1383176, 1689016, 2043772, 2450910, 2916896, 3445538, 4043906, 4716110, 5469818, 6309488, 7243362, 8276224]