41977

Appears in sequences

• Recurrence a(n) = a(n-1) + 2^n*a(n-2) with a(0)=0, a(1)=1.at n=7A228465
• Number of nX3 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=10A300634