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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.

A069945 Let M_k be the k X k matrix M_k(i,j)=1/binomial(i+n,j); then a(n)=1/det(M_(n+1)).

Table of values

n a(n)
1 1
2 -6
3 -360
4 252000
5 2222640000
6 -258768639360000
7 -410299414270986240000
8 9061429740221589431500800000
9 2835046804394206618956825845760000000
10 -12733381268715468286016211650968992153600000000

List of values

[1, -6, -360, 252000, 2222640000, -258768639360000, -410299414270986240000, 9061429740221589431500800000, 2835046804394206618956825845760000000, -12733381268715468286016211650968992153600000000]

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

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