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.

A165203 Expansion of (1+x)*c(x)^3/(1-x*c(x)^3), c(x) the g.f. of A000108.

Table of values

n a(n)
0 1
1 5
2 20
3 81
4 332
5 1372
6 5702
7 23793
8 99576
9 417664
10 1754866
11 7383204
12 31096466
13 131084954
14 552969854
15 2334012425
16 9856336324
17 41639407776
18 175971686398
19 743888534968
20 3145439344550
21 13302946909338
22 56272308538682

List of values

[1, 5, 20, 81, 332, 1372, 5702, 23793, 99576, 417664, 1754866, 7383204, 31096466, 131084954, 552969854, 2334012425, 9856336324, 41639407776, 175971686398, 743888534968, 3145439344550, 13302946909338, 56272308538682]