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.

A118024 Triangle T, read by rows, T(n,k) = T(n-k)*2^(k*(n-k)) such that column 0 of the matrix square of T equals column 0 of T shifted left: [T^2](n,k) = T(n-k+1,0)*2^(k*(n-k)) for n>=k>=0.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 2
5 1
6 6
7 8
8 4
9 1
10 28
11 48
12 32
13 8
14 1
15 216
16 448
17 384
18 128
19 16
20 1
21 2864
22 6912
23 7168
24 3072
25 512
26 32
27 1
28 66656
29 183296
30 221184
31 114688
32 24576
33 2048
34 64
35 1
36 2760896
37 8531968
38 11730944
39 7077888
40 1835008
41 196608
42 8192
43 128
44 1
45 205824384
46 706789376

List of values

[1, 1, 1, 2, 2, 1, 6, 8, 4, 1, 28, 48, 32, 8, 1, 216, 448, 384, 128, 16, 1, 2864, 6912, 7168, 3072, 512, 32, 1, 66656, 183296, 221184, 114688, 24576, 2048, 64, 1, 2760896, 8531968, 11730944, 7077888, 1835008, 196608, 8192, 128, 1, 205824384, 706789376]