98488592

Appears in sequences

• Number of (n+1)X(2+1) 0..2 arrays with the maximum plus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=8A237773
• E.g.f. satisfies A(x) = 1/(1 + log(1 - x*A(x)^2)).at n=7A367138