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A087925 Number of ways of arranging the numbers 1 ... 4n into a 4 X n array so there is exactly one local maximum. 0

%I

%S 8,3584,7452704,35704394880,331333877743200,5338455334819710720,

%T 137813651152462288749440,5359457796069778002771306240,

%U 299167849199075018703047460201600

%N Number of ways of arranging the numbers 1 ... 4n into a 4 X n array so there is exactly one local maximum.

%Y A row of the array in A087783. Cf. A007846.

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 27 2003

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Last modified May 19 23:13 EDT 2022. Contains 353847 sequences. (Running on oeis4.)