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.

A046729 Expansion of 4*x/((1+x)*(1-6*x+x^2)).

Table of values

n a(n)
0 0
1 4
2 20
3 120
4 696
5 4060
6 23660
7 137904
8 803760
9 4684660
10 27304196
11 159140520
12 927538920
13 5406093004
14 31509019100
15 183648021600
16 1070379110496
17 6238626641380
18 36361380737780
19 211929657785304
20 1235216565974040
21 7199369738058940
22 41961001862379596
23 244566641436218640

List of values

[0, 4, 20, 120, 696, 4060, 23660, 137904, 803760, 4684660, 27304196, 159140520, 927538920, 5406093004, 31509019100, 183648021600, 1070379110496, 6238626641380, 36361380737780, 211929657785304, 1235216565974040, 7199369738058940, 41961001862379596, 244566641436218640]