1174889domain: NAppears in sequencesa(n) = (F(3n) + F(n))/3, where F = A000045 (the Fibonacci sequence).at n=11A049673Triangle read by rows: T(n,k) is the number of permutations of [n] with exactly k increasing runs of even length.at n=36A097592Number of permutations of [n] with no increasing runs of even length.at n=11A097597