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%I #20 Dec 18 2018 10:43:30
%S 1,0,0,2,10,4,40,92,352,724,2680,14200,73712,365596,2279184,14772512,
%T 95815104,666090624,4968057848,39029188884,314666222712,2691008701644,
%U 24233937684440,226732487925864
%N Erroneous duplicate of A000170, see comments.
%C This is a new calculation of A000170 which produced a different answer for n=24. I do not know which version is correct and I have therefore created this second entry for the values found by the NQueens(AT)home team. See the main entry for this sequence, A000170, for many further references and comments.
%C As discovered on Nov 07 2008, this sequence is likely to suffer from an overflow error in the implementation of the NQueens(AT)Home project. The results differ by 781684047872 = 0xb600000000 = 182 * 2^32.
%H NQueens(AT)home, <a href="https://web.archive.org/web/20090926014014/http://nqueens.ing.udec.cl:80/">Home Page</a> [Via Internet Archive Wayback-Machine]]
%Y See A000170 for further information.
%K dead
%O 1,4
%A _N. J. A. Sloane_, Jun 18 2008
%E a(24) is probably mistaken. - _Thomas B. Preußer_, Nov 07 2008
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