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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.

A071794 a(n) is the smallest integer > 0 that cannot be obtained from the integers {1, ..., n} using each number at most once and the operators +, -, *, /, ^.

Table of values

n a(n)
1 2
2 4
3 11
4 34
5 178
6 926
7 9434

List of values

[2, 4, 11, 34, 178, 926, 9434]

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

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