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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.

A213268 Denominators of the Inverse semi-binomial transform of A001477(n) read downwards antidiagonals.

Table of values

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

List of values

[1, 1, 1, 1, 2, 1, 1, 1, 4, 4, 1, 2, 2, 8, 2, 1, 1, 4, 1, 16, 16, 1, 2, 1, 8, 8, 32, 16, 1, 1, 4, 4, 16, 8, 64, 64, 1, 2, 2, 8, 4, 32, 32, 128, 16, 1, 1, 4, 2, 16, 16, 64, 8, 256, 256, 1, 2, 1, 8, 8, 32, 4, 128, 128, 512, 256, 1, 1, 4, 4, 16, 2, 64, 64, 256, 128, 1024, 1024]