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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.

A071905 a(n) is the smallest positive integer (which is a polynomial of degree 0) that cannot be obtained using the polynomials {x, x+1, ..., x+n} using each polynomial at most once and the operations +, -, *, /.

Table of values

n a(n)
0 1
1 2
2 3
3 5
4 7
5 13
6 29
7 67
8 103
9 373

List of values

[1, 2, 3, 5, 7, 13, 29, 67, 103, 373]

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

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