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.

A205884 a(n) = Pell(n)*A109064(n) for n >= 1 with a(0)=1.

Table of values

n a(n)
0 1
1 -5
2 10
3 50
4 -180
5 -145
6 -700
7 5070
8 10200
9 -34475
10 11890
11 -344460
12 415800
13 2007660
14 -2423460
15 1950250
16 -25895760
17 90935120
18 96047350
19 -662510900
20 -239916420
21 -2316837900
22 5593341480
23 24756454910
24 -27166986000
25 -6558690605
26 -190008957720
27 764537004500

List of values

[1, -5, 10, 50, -180, -145, -700, 5070, 10200, -34475, 11890, -344460, 415800, 2007660, -2423460, 1950250, -25895760, 90935120, 96047350, -662510900, -239916420, -2316837900, 5593341480, 24756454910, -27166986000, -6558690605, -190008957720, 764537004500]

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

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