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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.

A304120 a(n) is the least k such that there is a permutation of the positive integers from 1 through k for which every pair of adjacent terms sums to a perfect power with exponent n.

Table of values

n a(n)
1 2
2 15
3 305
4 6479

List of values

[2, 15, 305, 6479]

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

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