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.

A179566 Number of permutations of 1..n with the number moved left exceeding the number moved right by 0 or more.

Original entry on oeis.org

1, 1, 2, 5, 19, 83, 501, 3217, 26489, 223001, 2307265, 23964881, 297799569, 3677298385, 53294334289, 762583317329, 12621599431489, 205355314491969, 3820420692695361, 69655479737261377, 1438574866261997777, 29053167748430247953, 659456581268987396785, 14613762897810470264817
Offset: 0

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Author

R. H. Hardin, Jul 19 2010

Keywords

Crossrefs

For equal numbers moved left and right, see A062868.
Cf. A062866.

Formula

a(n) = Sum_{k>=0} A062866(n,k). - Alois P. Heinz, Jul 31 2018

Extensions

a(0) and a(19)-a(20) from Alois P. Heinz, Jul 31 2018
a(21)-a(23) from Alois P. Heinz, Apr 28 2024