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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.

A374241 a(n) is the maximal absolute value of the determinant of an n X n symmetric Toeplitz matrix having 1 on the main diagonal and all the integers 1, 2, ..., n-1 off-diagonal.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 40
5 545
6 13805
7 526773
8 18551951
9 768561384
10 31451535983
11 1273675677456
12 87868166035113
13 7601760995500947
14 664087819207293468

List of values

[1, 1, 0, 1, 40, 545, 13805, 526773, 18551951, 768561384, 31451535983, 1273675677456, 87868166035113, 7601760995500947, 664087819207293468]

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

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