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.

A020332 Numbers whose base-4 representation is the juxtaposition of two identical strings.

Table of values

n a(n)
1 5
2 10
3 15
4 68
5 85
6 102
7 119
8 136
9 153
10 170
11 187
12 204
13 221
14 238
15 255
16 1040
17 1105
18 1170
19 1235
20 1300
21 1365
22 1430
23 1495
24 1560
25 1625
26 1690
27 1755
28 1820
29 1885
30 1950
31 2015
32 2080
33 2145
34 2210
35 2275
36 2340
37 2405
38 2470
39 2535
40 2600
41 2665
42 2730
43 2795
44 2860
45 2925
46 2990

List of values

[5, 10, 15, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255, 1040, 1105, 1170, 1235, 1300, 1365, 1430, 1495, 1560, 1625, 1690, 1755, 1820, 1885, 1950, 2015, 2080, 2145, 2210, 2275, 2340, 2405, 2470, 2535, 2600, 2665, 2730, 2795, 2860, 2925, 2990]

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

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