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.

A258371 Triangle read by rows: T(n,k) is number of ways of arranging n indistinguishable points on an n X n square grid such that k rows contain at least one point.

Table of values

n a(n)
1 1
2 2
3 4
4 3
5 54
6 27
7 4
8 408
9 1152
10 256
11 5
12 2500
13 22500
14 25000
15 3125
16 6
17 13830
18 315900
19 988200
20 583200
21 46656
22 7
23 72030
24 3709545
25 25882780
26 40588905
27 14823774
28 823543
29 8
30 360304
31 39024384
32 535754240
33 1766195200
34 1657012224
35 411041792
36 16777216

List of values

[1, 2, 4, 3, 54, 27, 4, 408, 1152, 256, 5, 2500, 22500, 25000, 3125, 6, 13830, 315900, 988200, 583200, 46656, 7, 72030, 3709545, 25882780, 40588905, 14823774, 823543, 8, 360304, 39024384, 535754240, 1766195200, 1657012224, 411041792, 16777216]