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.

A106208 Triangular matrix T, read by rows, that satisfies: [T^-1](n,k) = -(k+1)*T(n-1,k) when (n-1)>=k>=0, with T(n,n) = 1 and T(n+1,n) = (n+1) for n>=0.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 2
5 1
6 16
7 10
8 3
9 1
10 127
11 78
12 21
13 4
14 1
15 1363
16 832
17 216
18 36
19 5
20 1
21 18628
22 11342
23 2901
24 460
25 55
26 6
27 1
28 311250
29 189286
30 48081
31 7456
32 840
33 78
34 7
35 1
36 6173791
37 3752320
38 949800
39 145660
40 15955
41 1386
42 105
43 8
44 1
45 142190703
46 86392756
47 21826470
48 3327340

List of values

[1, 1, 1, 3, 2, 1, 16, 10, 3, 1, 127, 78, 21, 4, 1, 1363, 832, 216, 36, 5, 1, 18628, 11342, 2901, 460, 55, 6, 1, 311250, 189286, 48081, 7456, 840, 78, 7, 1, 6173791, 3752320, 949800, 145660, 15955, 1386, 105, 8, 1, 142190703, 86392756, 21826470, 3327340]