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.

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A106343 Column 0 of triangle A106342, which is the matrix inverse of the triangle A008278 of Stirling numbers of 2nd kind.

Original entry on oeis.org

1, -1, 2, -9, 94, -2220, 114456, -12542341, 2868686486, -1352689963470, 1303841598115220, -2553657953434195806, 10119516065845068051324, -80887691741489094086813370, 1301256069443123826666772275060, -42062318857764855463647559458896325
Offset: 0

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Author

Paul D. Hanna, May 01 2005

Keywords

Crossrefs

Programs

  • PARI
    {a(n)=(matrix(n+1,n+1,r,c,if(r>=c, sum(m=0,r-c+1,(-1)^(r-c+1-m)*m^r/m!/(r-c+1-m)!)))^-1)[n+1,1]}
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