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.

A340666 A(n,k) is derived from n by replacing each 0 in its binary representation with a string of k 0's; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

n a(n)
0 0
1 0
2 1
3 0
4 1
5 1
6 0
7 1
8 2
9 3
10 0
11 1
12 4
13 3
14 1
15 0
16 1
17 8
18 3
19 4
20 3
21 0
22 1
23 16
24 3
25 16
26 5
27 3
28 0
29 1
30 32
31 3
32 64
33 9
34 6
35 7
36 0
37 1
38 64
39 3
40 256
41 17
42 12
43 7
44 1
45 0
46 1
47 128
48 3
49 1024
50 33
51 24
52 7
53 8
54 3
55 0
56 1
57 256
58 3
59 4096
60 65
61 48
62 7
63 64
64 9
65 3
66 0
67 1
68 512
69 3
70 16384
71 129
72 96
73 7
74 512
75 33
76 10
77 7

List of values

[0, 0, 1, 0, 1, 1, 0, 1, 2, 3, 0, 1, 4, 3, 1, 0, 1, 8, 3, 4, 3, 0, 1, 16, 3, 16, 5, 3, 0, 1, 32, 3, 64, 9, 6, 7, 0, 1, 64, 3, 256, 17, 12, 7, 1, 0, 1, 128, 3, 1024, 33, 24, 7, 8, 3, 0, 1, 256, 3, 4096, 65, 48, 7, 64, 9, 3, 0, 1, 512, 3, 16384, 129, 96, 7, 512, 33, 10, 7]