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.

A274101 a(n) = nearest integer to k*sin(sqrt(k)+j*Pi/2) where n = 4*k+j, 0<=j<4.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 1
5 1
6 -1
7 -1
8 2
9 0
10 -2
11 0
12 3
13 0
14 -3
15 0
16 4
17 -2
18 -4
19 2
20 4
21 -3
22 -4
23 3
24 4
25 -5
26 -4
27 5
28 3
29 -6
30 -3
31 6
32 2
33 -8
34 -2
35 8
36 1
37 -9
38 -1
39 9
40 0
41 -10
42 0
43 10
44 -2
45 -11
46 2
47 11
48 -4
49 -11
50 4
51 11
52 -6
53 -12
54 6
55 12
56 -8
57 -12
58 8
59 12
60 -10
61 -11
62 10
63 11
64 -12
65 -10
66 12
67 10
68 -14
69 -9
70 14
71 9
72 -16
73 -8
74 16
75 8
76 -18
77 -7
78 18
79 7
80 -19
81 -5

List of values

[0, 0, 0, 0, 1, 1, -1, -1, 2, 0, -2, 0, 3, 0, -3, 0, 4, -2, -4, 2, 4, -3, -4, 3, 4, -5, -4, 5, 3, -6, -3, 6, 2, -8, -2, 8, 1, -9, -1, 9, 0, -10, 0, 10, -2, -11, 2, 11, -4, -11, 4, 11, -6, -12, 6, 12, -8, -12, 8, 12, -10, -11, 10, 11, -12, -10, 12, 10, -14, -9, 14, 9, -16, -8, 16, 8, -18, -7, 18, 7, -19, -5]