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.

A118343 Triangle, read by rows, where diagonals are successive self-convolutions of A108447.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 1
5 0
6 1
7 2
8 4
9 0
10 1
11 3
12 9
13 20
14 0
15 1
16 4
17 15
18 48
19 113
20 0
21 1
22 5
23 22
24 85
25 282
26 688
27 0
28 1
29 6
30 30
31 132
32 519
33 1762
34 4404
35 0
36 1
37 7
38 39
39 190
40 837
41 3330
42 11488
43 29219
44 0
45 1
46 8
47 49
48 260
49 1250
50 5516
51 22135
52 77270
53 199140
54 0
55 1
56 9
57 60
58 343
59 1773
60 8461
61 37404
62 151089
63 532239
64 1385904
65 0

List of values

[1, 1, 0, 1, 1, 0, 1, 2, 4, 0, 1, 3, 9, 20, 0, 1, 4, 15, 48, 113, 0, 1, 5, 22, 85, 282, 688, 0, 1, 6, 30, 132, 519, 1762, 4404, 0, 1, 7, 39, 190, 837, 3330, 11488, 29219, 0, 1, 8, 49, 260, 1250, 5516, 22135, 77270, 199140, 0, 1, 9, 60, 343, 1773, 8461, 37404, 151089, 532239, 1385904, 0]