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.

A077998 Expansion of (1-x)/(1-2*x-x^2+x^3).

Table of values

n a(n)
0 1
1 1
2 3
3 6
4 14
5 31
6 70
7 157
8 353
9 793
10 1782
11 4004
12 8997
13 20216
14 45425
15 102069
16 229347
17 515338
18 1157954
19 2601899
20 5846414
21 13136773
22 29518061
23 66326481
24 149034250
25 334876920
26 752461609
27 1690765888
28 3799116465
29 8536537209
30 19181424995
31 43100270734
32 96845429254

List of values

[1, 1, 3, 6, 14, 31, 70, 157, 353, 793, 1782, 4004, 8997, 20216, 45425, 102069, 229347, 515338, 1157954, 2601899, 5846414, 13136773, 29518061, 66326481, 149034250, 334876920, 752461609, 1690765888, 3799116465, 8536537209, 19181424995, 43100270734, 96845429254]

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

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