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.

A105963 Expansion of (1+4*x)/(1-x-3*x^2).

Table of values

n a(n)
0 1
1 5
2 8
3 23
4 47
5 116
6 257
7 605
8 1376
9 3191
10 7319
11 16892
12 38849
13 89525
14 206072
15 474647
16 1092863
17 2516804
18 5795393
19 13345805
20 30731984
21 70769399
22 162965351
23 375273548
24 864169601
25 1989990245
26 4582499048
27 10552469783
28 24299966927

List of values

[1, 5, 8, 23, 47, 116, 257, 605, 1376, 3191, 7319, 16892, 38849, 89525, 206072, 474647, 1092863, 2516804, 5795393, 13345805, 30731984, 70769399, 162965351, 375273548, 864169601, 1989990245, 4582499048, 10552469783, 24299966927]