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.

A212901 Number of (w,x,y,z) with all terms in {0,...,n} and equal consecutive gap sizes.

Table of values

n a(n)
0 1
1 4
2 13
3 26
4 45
5 66
6 95
7 126
8 163
9 204
10 251
11 300
12 357
13 416
14 481
15 550
16 625
17 702
18 787
19 874
20 967
21 1064
22 1167
23 1272
24 1385
25 1500
26 1621
27 1746
28 1877
29 2010
30 2151
31 2294
32 2443
33 2596
34 2755
35 2916
36 3085
37 3256
38 3433
39 3614
40 3801
41 3990
42 4187
43 4386
44 4591

List of values

[1, 4, 13, 26, 45, 66, 95, 126, 163, 204, 251, 300, 357, 416, 481, 550, 625, 702, 787, 874, 967, 1064, 1167, 1272, 1385, 1500, 1621, 1746, 1877, 2010, 2151, 2294, 2443, 2596, 2755, 2916, 3085, 3256, 3433, 3614, 3801, 3990, 4187, 4386, 4591]