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.

A194412 Numbers m such that Sum_{k=1..m} (<1/3 + k*r> - ) = 0, where r=sqrt(2) and < > denotes fractional part.

Table of values

n a(n)
1 3
2 9
3 12
4 15
5 21
6 24
7 27
8 33
9 36
10 39
11 42
12 45
13 48
14 51
15 54
16 57
17 60
18 63
19 66
20 69
21 75
22 78
23 81
24 87
25 90
26 93
27 99
28 102
29 108
30 111
31 114
32 120
33 123
34 126
35 132
36 135
37 138
38 141
39 144
40 147
41 150
42 153
43 156
44 159
45 162
46 165
47 168
48 171
49 183
50 195
51 207
52 210
53 213
54 219
55 222
56 225
57 231

List of values

[3, 9, 12, 15, 21, 24, 27, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 75, 78, 81, 87, 90, 93, 99, 102, 108, 111, 114, 120, 123, 126, 132, 135, 138, 141, 144, 147, 150, 153, 156, 159, 162, 165, 168, 171, 183, 195, 207, 210, 213, 219, 222, 225, 231]