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.

A293707 Permanent of a Hankel matrix with factorial elements.

Table of values

n a(n)
1 2
2 84
3 137664
4 14784353280
5 159433923516825600
6 247133428169618164285440000
7 74871582187843476288006745227264000000
8 5793842294883032778309293201687815335916339200000000
9 145059336151890972759838967800541420103566785450351578316800000000000

List of values

[2, 84, 137664, 14784353280, 159433923516825600, 247133428169618164285440000, 74871582187843476288006745227264000000, 5793842294883032778309293201687815335916339200000000, 145059336151890972759838967800541420103566785450351578316800000000000]

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

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