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.

A296056 Determinant of the inverse of the matrix A_n, where A_n is the n X n matrix defined by A_n[i,j] = 1/C(i+j-2) for 1 <= i,j <= n, and C(k) is the k-th Catalan number (A000108).

Table of values

n a(n)
1 1
2 -2
3 -1400
4 -679140000
5 -122489812645200000
6 -6931927717187904217987200000
7 -114287375178291587421201860354580633600000
8 -527655997339226839875614785993553970321322576128000000000
9 -666218073328701414704702576237379472614149140939534461737723520000000000000

List of values

[1, -2, -1400, -679140000, -122489812645200000, -6931927717187904217987200000, -114287375178291587421201860354580633600000, -527655997339226839875614785993553970321322576128000000000, -666218073328701414704702576237379472614149140939534461737723520000000000000]