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.

A160175 Expansion of 1/(1 - 2*x - 2*x^2 - 2*x^3 - 2*x^4).

Table of values

n a(n)
0 1
1 2
2 6
3 18
4 54
5 160
6 476
7 1416
8 4212
9 12528
10 37264
11 110840
12 329688
13 980640
14 2916864
15 8676064
16 25806512
17 76760160
18 228319200
19 679123872
20 2020019488
21 6008445440
22 17871816000
23 53158809600
24 158118181056
25 470314504192
26 1398926621696
27 4161036233088

List of values

[1, 2, 6, 18, 54, 160, 476, 1416, 4212, 12528, 37264, 110840, 329688, 980640, 2916864, 8676064, 25806512, 76760160, 228319200, 679123872, 2020019488, 6008445440, 17871816000, 53158809600, 158118181056, 470314504192, 1398926621696, 4161036233088]