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.

A303260 Determinant of n X n matrix A[i,j] = (j - i - 1 mod n) + [i=j], i.e., the circulant having (n, 0, 1, ..., n-2) as first row.

Table of values

n a(n)
0 1
1 1
2 4
3 28
4 273
5 3421
6 52288
7 941578
8 19505545
9 456790123
10 11931215316
11 343871642632
12 10840081272265
13 371026432467913
14 13702802011918048
15 543154131059225686
16 23000016472483168305
17 1036227971225610466711
18 49492629462587441963140
19 2497992686980609418282548
20 132849300060919364474261281

List of values

[1, 1, 4, 28, 273, 3421, 52288, 941578, 19505545, 456790123, 11931215316, 343871642632, 10840081272265, 371026432467913, 13702802011918048, 543154131059225686, 23000016472483168305, 1036227971225610466711, 49492629462587441963140, 2497992686980609418282548, 132849300060919364474261281]