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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.

A099731 This table shows the coefficients of sum formulas of n-th Fibonacci numbers (A000045). The k-th row (k>=1) contains T(i,k) for i=1 to k, where k=[2*n+1+(-1)^(n-1)]/4 and T(i,k) satisfies F(n)= Sum_{i=1..k} T(i,k) * n^(k-i)/(k-1)!.

Table of values

n a(n)
1 1
2 1
3 -1
4 1
5 -5
6 10
7 1
8 -12
9 59
10 -90
11 1
12 -22
13 203
14 -830
15 1320
16 1
17 -35
18 525
19 -3985
20 15374
21 -23640
22 1
23 -51
24 1135
25 -13665
26 93544
27 -342324
28 523440
29 1
30 -70
31 2170
32 -37870
33 399889
34 -2542540
35 8997540
36 -13633200
37 1
38 -92
39 3794
40 -90440
41 1356929
42 -13076588
43 78896236
44 -271996080
45 409852800
46 1
47 -117
48 6198
49 -193410

List of values

[1, 1, -1, 1, -5, 10, 1, -12, 59, -90, 1, -22, 203, -830, 1320, 1, -35, 525, -3985, 15374, -23640, 1, -51, 1135, -13665, 93544, -342324, 523440, 1, -70, 2170, -37870, 399889, -2542540, 8997540, -13633200, 1, -92, 3794, -90440, 1356929, -13076588, 78896236, -271996080, 409852800, 1, -117, 6198, -193410]