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.

A250279 Number of length 4+1 0..n arrays with the sum of the squares of adjacent differences multiplied by some arrangement of +-1 equal to zero.

Table of values

n a(n)
1 16
2 79
3 240
4 581
5 1132
6 1991
7 3156
8 4841
9 7024
10 9807
11 13180
12 17561
13 22788
14 28943
15 36012
16 44421
17 53964
18 65179
19 77596
20 91809
21 107508
22 124907
23 143800
24 165353
25 188792
26 214495
27 242152
28 272493
29 305164
30 341051
31 379132
32 420569
33 464568
34 511663
35 561324

List of values

[16, 79, 240, 581, 1132, 1991, 3156, 4841, 7024, 9807, 13180, 17561, 22788, 28943, 36012, 44421, 53964, 65179, 77596, 91809, 107508, 124907, 143800, 165353, 188792, 214495, 242152, 272493, 305164, 341051, 379132, 420569, 464568, 511663, 561324]