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.

A216235 Square array T, read by antidiagonals: T(n,k) = 0 if n-k >= 2 or if k-n >= 5, T(1,0) = T(0,0) = T(0,1) = T(0,2) = T(0,3) = T(0,4) = 1, T(n,k) = T(n-1,k) + T(n,k-1).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 0
6 1
7 3
8 2
9 0
10 1
11 4
12 5
13 0
14 0
15 0
16 5
17 9
18 5
19 0
20 0
21 0
22 5
23 14
24 14
25 0
26 0
27 0
28 0
29 0
30 19
31 28
32 14
33 0
34 0
35 0
36 0
37 0
38 19
39 47
40 42
41 0
42 0
43 0
44 0
45 0
46 0
47 0
48 66
49 89
50 42
51 0
52 0
53 0
54 0
55 0
56 0
57 0
58 66
59 155
60 131
61 0
62 0
63 0
64 0
65 0
66 0
67 0
68 0
69 0
70 221
71 286
72 131
73 0
74 0
75 0
76 0
77 0
78 0
79 0
80 0
81 0
82 221
83 507
84 417
85 0
86 0
87 0
88 0
89 0
90 0

List of values

[1, 1, 1, 1, 2, 0, 1, 3, 2, 0, 1, 4, 5, 0, 0, 0, 5, 9, 5, 0, 0, 0, 5, 14, 14, 0, 0, 0, 0, 0, 19, 28, 14, 0, 0, 0, 0, 0, 19, 47, 42, 0, 0, 0, 0, 0, 0, 0, 66, 89, 42, 0, 0, 0, 0, 0, 0, 0, 66, 155, 131, 0, 0, 0, 0, 0, 0, 0, 0, 0, 221, 286, 131, 0, 0, 0, 0, 0, 0, 0, 0, 0, 221, 507, 417, 0, 0, 0, 0, 0, 0]