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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.

A335964 Triangle read by rows, T(n,k) = T(n-1,k) + T(n-3,k-1) + T(n-4,k-2) + delta(n,0)*delta(k,0), T(n,k<0) = T(n

Table of values

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

List of values

[1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 2, 1, 0, 0, 1, 3, 2, 0, 0, 0, 1, 4, 4, 0, 0, 0, 0, 1, 5, 7, 2, 0, 0, 0, 0, 1, 6, 11, 6, 1, 0, 0, 0, 0, 1, 7, 16, 13, 3, 0, 0, 0, 0, 0, 1, 8, 22, 24, 9, 0, 0, 0, 0, 0, 0, 1, 9, 29, 40, 22, 3, 0, 0, 0, 0, 0, 0]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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