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.

A189315 Expansion of g.f. 5*(1-3*x+x^2)/(1-5*x+5*x^2).

Table of values

n a(n)
0 5
1 10
2 30
3 100
4 350
5 1250
6 4500
7 16250
8 58750
9 212500
10 768750
11 2781250
12 10062500
13 36406250
14 131718750
15 476562500
16 1724218750
17 6238281250
18 22570312500
19 81660156250
20 295449218750
21 1068945312500
22 3867480468750
23 13992675781250
24 50625976562500
25 183166503906250
26 662702636718750

List of values

[5, 10, 30, 100, 350, 1250, 4500, 16250, 58750, 212500, 768750, 2781250, 10062500, 36406250, 131718750, 476562500, 1724218750, 6238281250, 22570312500, 81660156250, 295449218750, 1068945312500, 3867480468750, 13992675781250, 50625976562500, 183166503906250, 662702636718750]

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

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