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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.

A351148 a(n) is the maximal determinant of a symmetric n X n matrix using the integers 1 to n*(n+1)/2.

Table of values

n a(n)
1 1
2 5
3 112
4 7113
5 745285
6 90536348

List of values

[1, 5, 112, 7113, 745285, 90536348]