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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.

User: Yuan Li

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A346631 Number of strongly asymmetric Boolean nested canalizing functions with n variables.

Original entry on oeis.org

4, 24, 240, 2880, 41760
Offset: 2

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Author

Yuan Li, Jul 25 2021

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Comments from the Editors: It appears that this is essentially n!*A163271(n) (see also A052542), and also essentially 2*n!*A000129(n) (see also A215928). It also appears to match 2*A052580.

Formula

a(n) = n!((1+sqrt(2))^{n-1}-(1-sqrt(2))^{n-1})/sqrt(2).

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