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.

A166553 Triangle read by rows: T(n, k) = [x^k]( (n+2)!*(3*EulerE(n, x+1) - EulerE(n, x))/4 ).

Table of values

n a(n)
0 1
1 3
2 3
3 0
4 24
5 12
6 -30
7 0
8 180
9 60
10 0
11 -720
12 0
13 1440
14 360
15 2520
16 0
17 -12600
18 0
19 12600
20 2520
21 0
22 120960
23 0
24 -201600
25 0
26 120960
27 20160
28 -771120
29 0
30 3810240
31 0
32 -3175200
33 0
34 1270080
35 181440
36 0
37 -61689600
38 0
39 101606400
40 0
41 -50803200
42 0
43 14515200
44 1814400

List of values

[1, 3, 3, 0, 24, 12, -30, 0, 180, 60, 0, -720, 0, 1440, 360, 2520, 0, -12600, 0, 12600, 2520, 0, 120960, 0, -201600, 0, 120960, 20160, -771120, 0, 3810240, 0, -3175200, 0, 1270080, 181440, 0, -61689600, 0, 101606400, 0, -50803200, 0, 14515200, 1814400]