How many ways are there to place N numbers so that
P(i-1) > P(i)
& P(i)> P(i+1) where i is the middle element.
Eg - N=3 : (1,3,2) , (2,3,1)
2026-05-05 23:22:49.1778023369
Permutation of N numbers with middle element as greatest.
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