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.

A282757 2*n analog to Keith numbers.

Table of values

n a(n)
1 5
2 9
3 10
4 15
5 19
6 20
7 25
8 28
9 30
10 35
11 40
12 45
13 47
14 66
15 88
16 132
17 198
18 2006
19 2740
20 4012
21 4419
22 13635
23 56357
24 338540
25 354164
26 419966
27 441972
28 685704
29 803678
30 1528803
31 1844810
32 9127005
33 12305952
34 14315686
35 14650155
36 15828353
37 17838087
38 22618003
39 37826729
40 71644613

List of values

[5, 9, 10, 15, 19, 20, 25, 28, 30, 35, 40, 45, 47, 66, 88, 132, 198, 2006, 2740, 4012, 4419, 13635, 56357, 338540, 354164, 419966, 441972, 685704, 803678, 1528803, 1844810, 9127005, 12305952, 14315686, 14650155, 15828353, 17838087, 22618003, 37826729, 71644613]

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

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