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.

A015533 a(n) = 4*a(n-1) + 9*a(n-2).

Table of values

n a(n)
0 0
1 1
2 4
3 25
4 136
5 769
6 4300
7 24121
8 135184
9 757825
10 4247956
11 23812249
12 133480600
13 748232641
14 4194255964
15 23511117625
16 131792774176
17 738771155329
18 4141219588900
19 23213818753561
20 130126251314344
21 729429374039425
22 4088853757986796
23 22920279398302009

List of values

[0, 1, 4, 25, 136, 769, 4300, 24121, 135184, 757825, 4247956, 23812249, 133480600, 748232641, 4194255964, 23511117625, 131792774176, 738771155329, 4141219588900, 23213818753561, 130126251314344, 729429374039425, 4088853757986796, 22920279398302009]

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

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