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.

A340262 T(n, k) = multinomial(n + k/2; n, k/2) if k is even else 0. Triangle read by rows, for 0 <= k <= n.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 0
5 3
6 1
7 0
8 4
9 0
10 1
11 0
12 5
13 0
14 15
15 1
16 0
17 6
18 0
19 21
20 0
21 1
22 0
23 7
24 0
25 28
26 0
27 84
28 1
29 0
30 8
31 0
32 36
33 0
34 120
35 0
36 1
37 0
38 9
39 0
40 45
41 0
42 165
43 0
44 495
45 1
46 0
47 10
48 0
49 55
50 0
51 220
52 0
53 715
54 0
55 1
56 0
57 11
58 0
59 66
60 0
61 286
62 0
63 1001
64 0
65 3003
66 1
67 0
68 12
69 0
70 78
71 0
72 364
73 0
74 1365
75 0
76 4368
77 0

List of values

[1, 1, 0, 1, 0, 3, 1, 0, 4, 0, 1, 0, 5, 0, 15, 1, 0, 6, 0, 21, 0, 1, 0, 7, 0, 28, 0, 84, 1, 0, 8, 0, 36, 0, 120, 0, 1, 0, 9, 0, 45, 0, 165, 0, 495, 1, 0, 10, 0, 55, 0, 220, 0, 715, 0, 1, 0, 11, 0, 66, 0, 286, 0, 1001, 0, 3003, 1, 0, 12, 0, 78, 0, 364, 0, 1365, 0, 4368, 0]