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 A243511 Number of ways half the maximal number of domicules can be placed on an n X n square. 2
 1, 1, 6, 110, 18343, 9382388, 43019044258, 558605693874364, 66236678406528448449, 21324218858696872235790649, 63694548993039561351614359349824, 503614181552476916158019971522161589536, 37393123107750749849065997795023579513072683993, 7226766277015485498828489748946241590630740791829515424 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Table of n, a(n) for n=0..13. FORMULA a(n) = A243424(n,floor(n^2/4)). EXAMPLE a(2) = 6: +---+ +---+ +---+ +---+ +---+ +---+ |o-o| | | |o | | o| |o | | o| | | | | || | | || | \ | | / | | | |o-o| |o | | o| | o| |o | +---+ +---+ +---+ +---+ +---+ +---+. CROSSREFS Cf. A243510. Sequence in context: A197978 A241702 A302866 * A199222 A260026 A112499 Adjacent sequences: A243508 A243509 A243510 * A243512 A243513 A243514 KEYWORD nonn AUTHOR Alois P. Heinz, Jun 05 2014 STATUS approved

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Last modified March 4 02:53 EST 2024. Contains 370522 sequences. (Running on oeis4.)