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A196814 Number of ways to place n nonattacking nightriders on an n X n cylindrical board 1

%I #6 Sep 12 2015 11:00:27

%S 1,4,6,84,120,784,280,40816,13806,1361706,110990,142633176,4263454,

%T 197730660,9246172320

%N Number of ways to place n nonattacking nightriders on an n X n cylindrical board

%H V. Kotesovec, <a href="https://oeis.org/wiki/User:Vaclav_Kotesovec">Non-attacking chess pieces</a>

%Y Cf. A190393, A196810, A196811, A172141, A173429

%K nonn,hard

%O 1,2

%A _Vaclav Kotesovec_, Oct 06 2011

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)