73348

Appears in sequences

• Number of length-n 0..4 arrays with no adjacent pair x,x+1 repeated.at n=6A269652
• T(n,k) = number of length-n 0..k arrays with no adjacent pair x,x+1 repeated: infinite square array read by falling antidiagonals.at n=51A269656
• Number of length-7 0..n arrays with no adjacent pair x,x+1 repeated.at n=3A269660
• a(n) = 1 + 3 * Sum_{k=0..n-1} binomial(n,k) * (n-k-1)! * a(k).at n=5A343709
• Positive integers m with 2*m^2 - 2^4 = x^4 + y^4 for some nonnegative integers x and y with |x-y| > 2.at n=12A343917
• Main diagonal of array in A358298.at n=35A358301