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.

A171700 Triangle T : T(n,k)= A007318(n,k)*a(n-k) with a(0)=0 and a(n)= A077957(n-1) for n>0.

Table of values

n a(n)
0 0
1 1
2 0
3 0
4 2
5 0
6 2
7 0
8 3
9 0
10 0
11 8
12 0
13 4
14 0
15 4
16 0
17 20
18 0
19 5
20 0
21 0
22 24
23 0
24 40
25 0
26 6
27 0
28 8
29 0
30 84
31 0
32 70
33 0
34 7
35 0
36 0
37 64
38 0
39 224
40 0
41 112
42 0
43 8
44 0
45 16
46 0
47 288
48 0
49 504
50 0
51 168
52 0
53 9
54 0
55 0
56 160
57 0
58 960
59 0
60 1008
61 0
62 240
63 0
64 10
65 0

List of values

[0, 1, 0, 0, 2, 0, 2, 0, 3, 0, 0, 8, 0, 4, 0, 4, 0, 20, 0, 5, 0, 0, 24, 0, 40, 0, 6, 0, 8, 0, 84, 0, 70, 0, 7, 0, 0, 64, 0, 224, 0, 112, 0, 8, 0, 16, 0, 288, 0, 504, 0, 168, 0, 9, 0, 0, 160, 0, 960, 0, 1008, 0, 240, 0, 10, 0]