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.

A140868 a(n) = floor(floor(n*alpha)*alpha) where alpha = 1+sqrt(2) = A014176.

Table of values

n a(n)
1 4
2 9
3 16
4 21
5 28
6 33
7 38
8 45
9 50
10 57
11 62
12 67
13 74
14 79
15 86
16 91
17 98
18 103
19 108
20 115
21 120
22 127
23 132
24 137
25 144
26 149
27 156
28 161
29 168
30 173
31 178
32 185
33 190
34 197
35 202
36 207
37 214
38 219
39 226
40 231
41 236
42 243
43 248
44 255
45 260
46 267
47 272
48 277
49 284
50 289
51 296
52 301
53 306
54 313
55 318
56 325
57 330
58 337
59 342
60 347
61 354
62 359
63 366
64 371
65 376
66 383

List of values

[4, 9, 16, 21, 28, 33, 38, 45, 50, 57, 62, 67, 74, 79, 86, 91, 98, 103, 108, 115, 120, 127, 132, 137, 144, 149, 156, 161, 168, 173, 178, 185, 190, 197, 202, 207, 214, 219, 226, 231, 236, 243, 248, 255, 260, 267, 272, 277, 284, 289, 296, 301, 306, 313, 318, 325, 330, 337, 342, 347, 354, 359, 366, 371, 376, 383]