57597

Appears in sequences

• a(n+2) = 5a(n+1) - 3a(n) (n >= 1); a(0) = 1, a(1) = 2, a(2) = 9.at n=8A095939
• Twin prime products minus 2.at n=16A124659
• Triangle T(n,k) = 4*binomial(n,k)^2 - 3, read by rows, 0<=k<=n.at n=58A141596
• Triangle T(n,k) = 4*binomial(n,k)^2 - 3, read by rows, 0<=k<=n.at n=62A141596
• T(n,k)=Number of nXk binary arrays with top left element equal to 1 and no two ones adjacent horizontally or antidiagonally.at n=52A228754
• Number of chains in the poset of permutations of [n].at n=6A375836