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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.

A271042 a(n) = k is the least squarefree number with a run of n >= 0 nonsquarefree numbers immediately preceding k and a run of zero nonsquarefree numbers immediately succeeding k.

Table of values

n a(n)
0 2
1 1
2 10
3 101
4 246
5 1685
6 22026
7 217077
8 7216626
9 8870033
10 262315477
11 221167433
12 105779897634
13 82462576233

List of values

[2, 1, 10, 101, 246, 1685, 22026, 217077, 7216626, 8870033, 262315477, 221167433, 105779897634, 82462576233]

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

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