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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.

A221211 Numbers n such that n and n + 4 are prime and there is a power of two in the interval (n,n+4).

Table of values

n	a(n)
1	3
2	7
3	13
4	127

List of values

[3, 7, 13, 127]

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