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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.

A180246 Triangle T(n,k) read by rows: T(n,k) = Sum_{j=0..k} (-1)^j *binomial(n+1,j)*(k+2-j)^n, 0 <= k < n.

Table of values

n a(n)
1 2
2 4
3 -3
4 8
5 -5
6 4
7 16
8 1
9 11
10 -5
11 32
12 51
13 46
14 -14
15 6
16 64
17 281
18 337
19 22
20 22
21 -7
22 128
23 1163
24 2472
25 1121
26 176
27 -27
28 8
29 256
30 4257
31 15703
32 15493
33 4419
34 163
35 37
36 -9
37 512
38 14563
39 88354
40 155980
41 88486
42 14398
43 622
44 -44
45 10
46 1024
47 47785
48 455357
49 1310024
50 1310816
51 454730
52 48170
53 848
54 56
55 -11

List of values

[2, 4, -3, 8, -5, 4, 16, 1, 11, -5, 32, 51, 46, -14, 6, 64, 281, 337, 22, 22, -7, 128, 1163, 2472, 1121, 176, -27, 8, 256, 4257, 15703, 15493, 4419, 163, 37, -9, 512, 14563, 88354, 155980, 88486, 14398, 622, -44, 10, 1024, 47785, 455357, 1310024, 1310816, 454730, 48170, 848, 56, -11]