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.

A161905 a(n) = 13*a(n-1) - 65*a(n-2) + 156*a(n-3) - 182*a(n-4) + 91*a(n-5) - 13*a(n-6), with a(1)..a(6) as shown.

Table of values

n a(n)
1 2
2 4
3 13
4 52
5 221
6 949
7 4056
8 17186
9 72163
10 300482
11 1241981
12 5100758
13 20833813
14 84695026
15 342920942
16 1383646433
17 5566235714
18 22334785486
19 89420529809
20 357319721889
21 1425447435997
22 5678246483273
23 22590565547134
24 89775857333032
25 356428030609222
26 1413891596961194
27 5604509198580578

List of values

[2, 4, 13, 52, 221, 949, 4056, 17186, 72163, 300482, 1241981, 5100758, 20833813, 84695026, 342920942, 1383646433, 5566235714, 22334785486, 89420529809, 357319721889, 1425447435997, 5678246483273, 22590565547134, 89775857333032, 356428030609222, 1413891596961194, 5604509198580578]

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

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