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.

A231969 a(n) = the smallest squarefree number (A005117) with n prime factors in a 2p+1 progression.

Table of values

n a(n)
1 2
2 10
3 110
4 2530
5 118910
6 17036047229140531
7 4713753689937227789548410467592773787730621935419
8 4754361703029497628070972207349674154455369685904736544199583856401
9 17434718204270642890620908753958444038404912529730635812020757976125828120134034469

List of values

[2, 10, 110, 2530, 118910, 17036047229140531, 4713753689937227789548410467592773787730621935419, 4754361703029497628070972207349674154455369685904736544199583856401, 17434718204270642890620908753958444038404912529730635812020757976125828120134034469]

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

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