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.

A351783 Number of grains of sand required to be added to one cell at the origin in an initially empty and infinite 3D cubic grid for the 3D sandpile model such that the distance from the origin of the furthest nonempty cell along the axes is n.

Table of values

n a(n)
0 0
1 6
2 36
3 162
4 516
5 1230
6 2430
7 3756
8 5862
9 9036
10 12822
11 16710
12 22182
13 28758
14 36144
15 45444
16 54966
17 66270
18 78870
19 93834
20 109866
21 127260
22 146412
23 169698
24 192366
25 218214
26 244752
27 273480
28 307224
29 341430
30 380988
31 420558
32 463350
33 510024
34 558090
35 611088
36 664494
37 723060
38 784014
39 844134
40 921486

List of values

[0, 6, 36, 162, 516, 1230, 2430, 3756, 5862, 9036, 12822, 16710, 22182, 28758, 36144, 45444, 54966, 66270, 78870, 93834, 109866, 127260, 146412, 169698, 192366, 218214, 244752, 273480, 307224, 341430, 380988, 420558, 463350, 510024, 558090, 611088, 664494, 723060, 784014, 844134, 921486]