162517domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of length n sequences p(i=0..n-1) with 0<=p(i)<=i and having exactly 2 maxima.at n=8A181226T(n,k)=Number of length n sequences p(i=0..n-1) with 0<=p(i)<=i and having exactly k maxima.at n=53A181229Prime numbersat n=14886