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.

A158196 Expansion of (1-x^2*c(x)^4)/(1-3*x*c(x)^2), c(x) the g.f. of A000108.

Table of values

n a(n)
0 1
1 3
2 14
3 71
4 370
5 1950
6 10332
7 54895
8 292106
9 1555706
10 8289732
11 44186710
12 235575028
13 1256093084
14 6698073528
15 35719158591
16 190488112122
17 1015885525794
18 5417869631028
19 28894620083346
20 154102115782812

List of values

[1, 3, 14, 71, 370, 1950, 10332, 54895, 292106, 1555706, 8289732, 44186710, 235575028, 1256093084, 6698073528, 35719158591, 190488112122, 1015885525794, 5417869631028, 28894620083346, 154102115782812]