38495

Appears in sequences

• a(n)=Sum{a(k): k=0,1,2,...,n-3,n-1}; a(n-2) is not a summand; 2 initial terms required.at n=19A049854
• a(n) = a(n-2)+a(n-3) with a(1)=2 a(2)=1 a(3)=0.at n=39A276276
• Array read by antidiagonals: A(n,k) is the number of sensed planar maps with n vertices and k faces, n >= 1, k >= 1.at n=40A379430