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.

A052702 Expansion of (1/2)*(1/x^2 - 1/x)*(1-x-sqrt(1-2*x+x^2-4*x^3)) - x.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 1
5 2
6 3
7 6
8 13
9 26
10 52
11 108
12 226
13 472
14 993
15 2106
16 4485
17 9586
18 20576
19 44332
20 95814
21 207688
22 451438
23 983736
24 2148618
25 4702976
26 10314672
27 22664452
28 49887084
29 109985772
30 242854669
31 537004218
32 1189032613
33 2636096922
34 5851266616
35 13002628132
36 28925389870
37 64412505472
38 143576017410

List of values

[0, 0, 0, 0, 1, 2, 3, 6, 13, 26, 52, 108, 226, 472, 993, 2106, 4485, 9586, 20576, 44332, 95814, 207688, 451438, 983736, 2148618, 4702976, 10314672, 22664452, 49887084, 109985772, 242854669, 537004218, 1189032613, 2636096922, 5851266616, 13002628132, 28925389870, 64412505472, 143576017410]

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

Content is available under The OEIS End-User License Agreement.