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.

A114220 a(n) = Sum_{k=0..floor(n/2)} (k - (k-1)*0^(n-2*k)).

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 2
5 3
6 4
7 6
8 7
9 10
10 11
11 15
12 16
13 21
14 22
15 28
16 29
17 36
18 37
19 45
20 46
21 55
22 56
23 66
24 67
25 78
26 79
27 91
28 92
29 105
30 106
31 120
32 121
33 136
34 137
35 153
36 154
37 171
38 172
39 190
40 191
41 210
42 211
43 231
44 232
45 253
46 254
47 276
48 277
49 300
50 301
51 325
52 326
53 351
54 352
55 378
56 379
57 406
58 407
59 435
60 436

List of values

[1, 0, 1, 1, 2, 3, 4, 6, 7, 10, 11, 15, 16, 21, 22, 28, 29, 36, 37, 45, 46, 55, 56, 66, 67, 78, 79, 91, 92, 105, 106, 120, 121, 136, 137, 153, 154, 171, 172, 190, 191, 210, 211, 231, 232, 253, 254, 276, 277, 300, 301, 325, 326, 351, 352, 378, 379, 406, 407, 435, 436]