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.

A378317 Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,0) = 0^n and T(n,k) = k * Sum_{r=0..n} binomial(n,r) * binomial(2*r+k,n)/(2*r+k) for k > 0.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 2
5 0
6 1
7 4
8 4
9 0
10 1
11 6
12 12
13 12
14 0
15 1
16 8
17 24
18 40
19 40
20 0
21 1
22 10
23 40
24 92
25 144
26 144
27 0
28 1
29 12
30 60
31 176
32 360
33 544
34 544
35 0
36 1
37 14
38 84
39 300
40 752
41 1440
42 2128
43 2128
44 0
45 1
46 16
47 112
48 472
49 1400
50 3200
51 5872
52 8544
53 8544
54 0
55 1
56 18
57 144
58 700
59 2400
60 6352
61 13664
62 24336
63 35008
64 35008
65 0

List of values

[1, 1, 0, 1, 2, 0, 1, 4, 4, 0, 1, 6, 12, 12, 0, 1, 8, 24, 40, 40, 0, 1, 10, 40, 92, 144, 144, 0, 1, 12, 60, 176, 360, 544, 544, 0, 1, 14, 84, 300, 752, 1440, 2128, 2128, 0, 1, 16, 112, 472, 1400, 3200, 5872, 8544, 8544, 0, 1, 18, 144, 700, 2400, 6352, 13664, 24336, 35008, 35008, 0]