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.

A137337 T(i,j) = (-1)^(i+j)*(i+1)*binomial(i,j)*2^(i-j)*4^j.

Table of values

n a(n)
0 1
1 -4
2 8
3 12
4 -48
5 48
6 -32
7 192
8 -384
9 256
10 80
11 -640
12 1920
13 -2560
14 1280
15 -192
16 1920
17 -7680
18 15360
19 -15360
20 6144
21 448
22 -5376
23 26880
24 -71680
25 107520
26 -86016
27 28672
28 -1024
29 14336
30 -86016
31 286720
32 -573440
33 688128
34 -458752
35 131072
36 2304
37 -36864
38 258048
39 -1032192
40 2580480
41 -4128768
42 4128768
43 -2359296
44 589824

List of values

[1, -4, 8, 12, -48, 48, -32, 192, -384, 256, 80, -640, 1920, -2560, 1280, -192, 1920, -7680, 15360, -15360, 6144, 448, -5376, 26880, -71680, 107520, -86016, 28672, -1024, 14336, -86016, 286720, -573440, 688128, -458752, 131072, 2304, -36864, 258048, -1032192, 2580480, -4128768, 4128768, -2359296, 589824]