-445

Appears in sequences

• Said to have been posted at the web site mturk.amazon.com as a puzzle.at n=1A124170
• First differences of A138383.at n=48A137174
• Table T(n,k) = -2*T(n-1,k)+T(n-1,k+1) = T(n,k-4), 0<=n.at n=25A140287
• Triangle read by rows: T(n,k) appears in the transformation Sum_{k=0..n} (k+1)*x^k = Sum_{k=0..n} T(n,k)*(x+3k)^k.at n=19A253384
• Alternating sum of octagonal pyramidal numbers.at n=9A269429
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 145", based on the 5-celled von Neumann neighborhood.at n=11A270289
• Dirichlet inverse of A006369, the inverse permutation of "amusical permutation".at n=69A349368