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.

A221967 T(n,k)=Number of -k..k arrays of length n with the sum ahead of each element differing from the sum following that element by k or less.

Table of values

n a(n)
1 3
2 5
3 9
4 7
5 25
6 15
7 9
8 49
9 65
10 33
11 11
12 81
13 175
14 225
15 63
16 13
17 121
18 369
19 833
20 705
21 129
22 15
23 169
24 671
25 2241
26 3647
27 2305
28 255
29 17
30 225
31 1105
32 4961
33 12609
34 16513
35 7425
36 513
37 19
38 289
39 1695
40 9633
41 34111
42 73089
43 73983
44 24065
45 1023
46 21
47 361
48 2465
49 17025
50 78273
51 241153

List of values

[3, 5, 9, 7, 25, 15, 9, 49, 65, 33, 11, 81, 175, 225, 63, 13, 121, 369, 833, 705, 129, 15, 169, 671, 2241, 3647, 2305, 255, 17, 225, 1105, 4961, 12609, 16513, 7425, 513, 19, 289, 1695, 9633, 34111, 73089, 73983, 24065, 1023, 21, 361, 2465, 17025, 78273, 241153]