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.

A135838 Triangle read by rows: T(n,k) = 2^floor(n/2)*binomial(n-1,k-1).

Table of values

n a(n)
1 1
2 2
3 2
4 2
5 4
6 2
7 4
8 12
9 12
10 4
11 4
12 16
13 24
14 16
15 4
16 8
17 40
18 80
19 80
20 40
21 8
22 8
23 48
24 120
25 160
26 120
27 48
28 8
29 16
30 112
31 336
32 560
33 560
34 336
35 112
36 16
37 16
38 128
39 448
40 896
41 1120
42 896
43 448
44 128
45 16
46 32
47 288
48 1152
49 2688
50 4032
51 4032
52 2688
53 1152
54 288
55 32

List of values

[1, 2, 2, 2, 4, 2, 4, 12, 12, 4, 4, 16, 24, 16, 4, 8, 40, 80, 80, 40, 8, 8, 48, 120, 160, 120, 48, 8, 16, 112, 336, 560, 560, 336, 112, 16, 16, 128, 448, 896, 1120, 896, 448, 128, 16, 32, 288, 1152, 2688, 4032, 4032, 2688, 1152, 288, 32]