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.

A384611 Expansion of (1+2*x-x^3) / (1-5*x^2+2*x^4).

Table of values

n a(n)
0 1
1 2
2 5
3 9
4 23
5 41
6 105
7 187
8 479
9 853
10 2185
11 3891
12 9967
13 17749
14 45465
15 80963
16 207391
17 369317
18 946025
19 1684659
20 4315343
21 7684661
22 19684665
23 35053987
24 89792639
25 159900613
26 409593865
27 729395091
28 1868384047
29 3327174229
30 8522732505
31 15177080963
32 38876894431

List of values

[1, 2, 5, 9, 23, 41, 105, 187, 479, 853, 2185, 3891, 9967, 17749, 45465, 80963, 207391, 369317, 946025, 1684659, 4315343, 7684661, 19684665, 35053987, 89792639, 159900613, 409593865, 729395091, 1868384047, 3327174229, 8522732505, 15177080963, 38876894431]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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