2238736

Appears in sequences

• Triangle read by rows: T(n,k) is the number of ways of building a building of height k using n 2 X 4 LEGO blocks, counted up to symmetry (for 2 <= k <= n).at n=9A112390
• a(n) = 22*Sum_{i=0..n-2} 46^i*2^(n-2-i) + 2^(n-1).at n=4A272690