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.

A157153 Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) - m*k*(n-k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1 and m = 2, read by rows.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 4
5 1
6 1
7 13
8 13
9 1
10 1
11 40
12 98
13 40
14 1
15 1
16 121
17 614
18 614
19 121
20 1
21 1
22 364
23 3519
24 6832
25 3519
26 364
27 1
28 1
29 1093
30 19179
31 64759
32 64759
33 19179
34 1093
35 1
36 1
37 3280
38 101368
39 558712
40 947038
41 558712
42 101368
43 3280
44 1
45 1
46 9841
47 525436
48 4538324
49 12078814
50 12078814
51 4538324
52 525436
53 9841
54 1

List of values

[1, 1, 1, 1, 4, 1, 1, 13, 13, 1, 1, 40, 98, 40, 1, 1, 121, 614, 614, 121, 1, 1, 364, 3519, 6832, 3519, 364, 1, 1, 1093, 19179, 64759, 64759, 19179, 1093, 1, 1, 3280, 101368, 558712, 947038, 558712, 101368, 3280, 1, 1, 9841, 525436, 4538324, 12078814, 12078814, 4538324, 525436, 9841, 1]