81910

Appears in sequences

• G.f. satisfies: A(x) = 1 + x*A(x)^4/A(-x).at n=7A143341
• Number of binary strings of length n with equal numbers of 0001 and 1110 substrings.at n=18A164165
• Number of reduced words of length n in Coxeter group on 5 generators S_i with relations (S_i)^2 = (S_i S_j)^8 = I.at n=8A164706
• Number of nX3 arrays of occupancy after each element moves to some horizontal or vertical neighbor, without move-in move-out left turns.at n=4A221674
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor, without move-in move-out left turns.at n=23A221676
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor, without move-in move-out left turns.at n=25A221676