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.
for all i in [n-j]; triangle T(n,k), n>=0, 0<=k<=n, read by rows.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 0 |
4 | 1 |
5 | 1 |
6 | 0 |
7 | 3 |
8 | 2 |
9 | 1 |
10 | 0 |
11 | 11 |
12 | 8 |
13 | 4 |
14 | 1 |
15 | 0 |
16 | 55 |
17 | 38 |
18 | 19 |
19 | 7 |
20 | 1 |
21 | 0 |
22 | 319 |
23 | 228 |
24 | 110 |
25 | 50 |
26 | 12 |
27 | 1 |
28 | 0 |
29 | 2233 |
30 | 1574 |
31 | 775 |
32 | 322 |
33 | 115 |
34 | 20 |
35 | 1 |
36 | 0 |
37 | 17641 |
38 | 12524 |
39 | 6216 |
40 | 2611 |
41 | 1033 |
42 | 261 |
43 | 33 |
44 | 1 |
45 | 0 |
46 | 158769 |
47 | 112084 |
48 | 55692 |
49 | 23585 |
50 | 9103 |
51 | 3006 |
52 | 586 |
53 | 54 |
54 | 1 |
55 | 0 |
56 | 1578667 |
57 | 1119496 |
58 | 556754 |
59 | 238425 |
60 | 91764 |
61 | 33929 |
62 | 8372 |
63 | 1304 |
64 | 88 |
65 | 1 |