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.

A302556 Expansion of x*(1 + 2*x*(5 - 4*x)*(1 + x^2)*(1 + x^4))/((1 - x)*(1 - 10*x^9)).

Table of values

n a(n)
0 0
1 1
2 11
3 3
4 13
5 5
6 15
7 7
8 17
9 9
10 19
11 119
12 39
13 139
14 59
15 159
16 79
17 179
18 99
19 199
20 1199
21 399
22 1399
23 599
24 1599
25 799
26 1799
27 999
28 1999
29 11999
30 3999
31 13999
32 5999
33 15999
34 7999
35 17999
36 9999
37 19999
38 119999
39 39999
40 139999
41 59999
42 159999
43 79999
44 179999
45 99999
46 199999
47 1199999
48 399999

List of values

[0, 1, 11, 3, 13, 5, 15, 7, 17, 9, 19, 119, 39, 139, 59, 159, 79, 179, 99, 199, 1199, 399, 1399, 599, 1599, 799, 1799, 999, 1999, 11999, 3999, 13999, 5999, 15999, 7999, 17999, 9999, 19999, 119999, 39999, 139999, 59999, 159999, 79999, 179999, 99999, 199999, 1199999, 399999]