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.

A379460 Array read by downward antidiagonals: A(n,k) = A(n,k-1) + (k+1)*(A(n-1,k) + A(n-1,k+1)) with A(n,0) = A(n-1,0) + A(n-1,1), A(0,k) = 1, n >= 0, k >= 0.

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 6
5 8
6 1
7 12
8 44
9 52
10 1
11 20
12 140
13 420
14 472
15 1
16 30
17 340
18 1860
19 5032
20 5504
21 1
22 42
23 700
24 6020
25 28672
26 72912
27 78416
28 1
29 56
30 1288
31 15960
32 116592
33 508704
34 1241648
35 1320064
36 1
37 72
38 2184
39 36792
40 380352
41 2496480
42 10257200
43 24317760
44 25637824
45 1
46 90
47 3480
48 76440
49 1059744
50 9696960
51 59030960
52 232182240
53 538637824
54 564275648

List of values

[1, 1, 2, 1, 6, 8, 1, 12, 44, 52, 1, 20, 140, 420, 472, 1, 30, 340, 1860, 5032, 5504, 1, 42, 700, 6020, 28672, 72912, 78416, 1, 56, 1288, 15960, 116592, 508704, 1241648, 1320064, 1, 72, 2184, 36792, 380352, 2496480, 10257200, 24317760, 25637824, 1, 90, 3480, 76440, 1059744, 9696960, 59030960, 232182240, 538637824, 564275648]