84300

Appears in sequences

• Number of 4 X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=8A207172
• Number of (n+1) X (2+1) 0..3 arrays with the sum of each 2 X 2 subblock two median terms lexicographically nondecreasing rowwise and columnwise.at n=1A235813
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise.at n=4A235815
• Expansion of (-1 + Product_{k>=1} 1 / (1 - x^k))^5.at n=9A341223
• Irregular table read by rows: T(n,k) is the number of k-gons, k>=2, among all distinct circles that can be constructed from a point on the origin and n equally spaced points on each of the +x,-x,+y,-y coordinates axes using only a compass.at n=48A361623