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.

A303699 Triangle read by rows in which row n gives coefficients of polynomial f_n(x) of degree less than n that satisfies Integral_{x=0..1} g(t - x) * f_n(x) dx = g(t) for any polynomial g(x) of degree less than n.

Table of values

n a(n)
0 1
1 4
2 -6
3 9
4 -36
5 30
6 16
7 -120
8 240
9 -140
10 25
11 -300
12 1050
13 -1400
14 630
15 36
16 -630
17 3360
18 -7560
19 7560
20 -2772
21 49
22 -1176
23 8820
24 -29400
25 48510
26 -38808
27 12012
28 64
29 -2016
30 20160
31 -92400
32 221760
33 -288288
34 192192
35 -51480
36 81
37 -3240
38 41580
39 -249480
40 810810
41 -1513512
42 1621620
43 -926640
44 218790

List of values

[1, 4, -6, 9, -36, 30, 16, -120, 240, -140, 25, -300, 1050, -1400, 630, 36, -630, 3360, -7560, 7560, -2772, 49, -1176, 8820, -29400, 48510, -38808, 12012, 64, -2016, 20160, -92400, 221760, -288288, 192192, -51480, 81, -3240, 41580, -249480, 810810, -1513512, 1621620, -926640, 218790]