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.

A135899 Triangle, read by rows equal to the matrix product P*R^-1*P, where P = A135880 and R = A135894; P*R^-1*P equals triangle Q=A135885 shifted down one row.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 1
5 1
6 6
7 4
8 1
9 1
10 25
11 20
12 6
13 1
14 1
15 138
16 126
17 42
18 8
19 1
20 1
21 970
22 980
23 351
24 72
25 10
26 1
27 1
28 8390
29 9186
30 3470
31 748
32 110
33 12
34 1
35 1
36 86796
37 101492
38 39968
39 8936
40 1365
41 156
42 14
43 1
44 1
45 1049546
46 1296934
47 528306
48 121532
49 19090
50 2250
51 210
52 16
53 1
54 1
55 14563135
56 18868652

List of values

[1, 1, 1, 2, 1, 1, 6, 4, 1, 1, 25, 20, 6, 1, 1, 138, 126, 42, 8, 1, 1, 970, 980, 351, 72, 10, 1, 1, 8390, 9186, 3470, 748, 110, 12, 1, 1, 86796, 101492, 39968, 8936, 1365, 156, 14, 1, 1, 1049546, 1296934, 528306, 121532, 19090, 2250, 210, 16, 1, 1, 14563135, 18868652]