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.

A347912 a(n) = Sum_{k=1..n} k - floor(sqrt(k)+1/2) * floor(sqrt(k-1)).

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 6
6 8
7 9
8 11
9 14
10 15
11 17
12 20
13 21
14 23
15 26
16 30
17 31
18 33
19 36
20 40
21 41
22 43
23 46
24 50
25 55
26 56
27 58
28 61
29 65
30 70
31 71
32 73
33 76
34 80
35 85
36 91
37 92
38 94
39 97
40 101
41 106
42 112
43 113
44 115
45 118
46 122
47 127
48 133
49 140
50 141
51 143
52 146
53 150
54 155
55 161
56 168
57 169
58 171
59 174
60 178
61 183
62 189
63 196
64 204

List of values

[1, 2, 3, 5, 6, 8, 9, 11, 14, 15, 17, 20, 21, 23, 26, 30, 31, 33, 36, 40, 41, 43, 46, 50, 55, 56, 58, 61, 65, 70, 71, 73, 76, 80, 85, 91, 92, 94, 97, 101, 106, 112, 113, 115, 118, 122, 127, 133, 140, 141, 143, 146, 150, 155, 161, 168, 169, 171, 174, 178, 183, 189, 196, 204]