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.

A071671 The binary encoding of parenthesizations given in a "global arithmetic order", using A061579 as the packing bijection N X N -> N.

Table of values

n a(n)
1 10
2 1010
3 1100
4 101010
5 110010
6 110100
7 101100
8 11001010
9 11010010
10 111000
11 10101010
12 11001100
13 1101001010
14 11100010
15 11010100
16 10110010
17 1100101010
18 1101001100
19 1110001010
20 1101010010
21 11100100
22 10110100
23 1100110010

List of values

[10, 1010, 1100, 101010, 110010, 110100, 101100, 11001010, 11010010, 111000, 10101010, 11001100, 1101001010, 11100010, 11010100, 10110010, 1100101010, 1101001100, 1110001010, 1101010010, 11100100, 10110100, 1100110010]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.