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.

A218790 a(n) = binary code (shown here in decimal) of the position of the predecessor of the natural number pair (2n,2n+1) in the compact beanstalk-tree A218782.

Table of values

n a(n)
1 1
2 3
3 5
4 13
5 21
6 37
7 53
8 117
9 181
10 309
11 437
12 693
13 949
14 1717
15 1461
16 3509
17 5557
18 9653
19 13749
20 21941
21 30133
22 54709
23 46517
24 79285
25 112053
26 210357
27 177589
28 472501
29 308661
30 734645
31 996789
32 2045365
33 3093941
34 5191093
35 7288245
36 11482549
37 15676853
38 28259765
39 24065461

List of values

[1, 3, 5, 13, 21, 37, 53, 117, 181, 309, 437, 693, 949, 1717, 1461, 3509, 5557, 9653, 13749, 21941, 30133, 54709, 46517, 79285, 112053, 210357, 177589, 472501, 308661, 734645, 996789, 2045365, 3093941, 5191093, 7288245, 11482549, 15676853, 28259765, 24065461]