31661

Appears in sequences

• Number of trees on n nodes with forbidden limbs.at n=18A014281
• Number of (n+1)X(2+1) 0..2 arrays with the maximum minus the lower median of every 2X2 subblock equal.at n=2A237844
• Number of (n+1)X(3+1) 0..2 arrays with the maximum minus the lower median of every 2X2 subblock equal.at n=1A237845
• T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with the maximum minus the lower median of every 2 X 2 subblock equal.at n=7A237850
• T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with the maximum minus the lower median of every 2 X 2 subblock equal.at n=8A237850
• E.g.f. A(x) satisfies A(x) = 1/( 1 - A(x) * sin(x * A(x)) ).at n=5A381182