72955

Appears in sequences

• a(n) = 6*4^n - 12*3^n + 7*2^n - 1.at n=7A091347
• Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,k+n} having excedance set {1,2,...,k} (the empty set for k=0), 0 <= k <= n-1.at n=48A136126
• Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,k+n} having excedance set {1,2,...,k} (the empty set for k=0), 0 <= k <= n-1.at n=51A136126
• Number of permutations of 1..n with i-6<=p(i)<=i+3.at n=9A179341