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.

A200554 Number of -n..n arrays x(0..3) of 4 elements with zero sum and nonzero second differences.

Table of values

n a(n)
1 14
2 76
3 200
4 446
5 836
6 1368
7 2134
8 3140
9 4368
10 5942
11 7852
12 10064
13 12734
14 15836
15 19320
16 23374
17 27956
18 33000
19 38726
20 45076
21 51968
22 59654
23 68060
24 77088
25 87022
26 97772
27 109224
28 121694
29 135076
30 149240
31 164534
32 180836
33 198000
34 216406
35 235916
36 256368
37 278174
38 301180
39 325208

List of values

[14, 76, 200, 446, 836, 1368, 2134, 3140, 4368, 5942, 7852, 10064, 12734, 15836, 19320, 23374, 27956, 33000, 38726, 45076, 51968, 59654, 68060, 77088, 87022, 97772, 109224, 121694, 135076, 149240, 164534, 180836, 198000, 216406, 235916, 256368, 278174, 301180, 325208]