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.

A185352 The "smallest countdown" numbers are the smallest positive integer that cannot be made using the numbers n through 1, in order, using the operations +, -, *, /, and parentheses.

Table of values

n a(n)
1 2
2 4
3 8
4 17
5 39
6 92
7 275
8 922
9 2894
10 10843
11 35944

List of values

[2, 4, 8, 17, 39, 92, 275, 922, 2894, 10843, 35944]

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

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