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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.

A300570 a(n) is the concatenation n in base 2, n-1 in base 2, ..., 1 in base 2.

Table of values

n a(n)
1 1
2 101
3 11101
4 10011101
5 10110011101
6 11010110011101
7 11111010110011101
8 100011111010110011101
9 1001100011111010110011101
10 10101001100011111010110011101
11 101110101001100011111010110011101
12 1100101110101001100011111010110011101

List of values

[1, 101, 11101, 10011101, 10110011101, 11010110011101, 11111010110011101, 100011111010110011101, 1001100011111010110011101, 10101001100011111010110011101, 101110101001100011111010110011101, 1100101110101001100011111010110011101]

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

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