442961

Properties

Appears in sequences

• Number of subsequences of [ 1,...,n ] in which each odd number has an even neighbor.at n=21A007455
• a(n) = 3*a(n-1) + 2*a(n-2), with a(0)=1, a(1)=5.at n=10A007483
• a(n) = 9*a(n-1) - a(n-2) for n > 0, a(0)=1, a(-1)=1.at n=6A070998
• Diagonal T(n+2,n) of array A094954.at n=6A094956
• Prime numbersat n=37171