33674

Appears in sequences

• Quadratic recurrence from Sylvester's sequence, but starting with a(0)=1 and a(1)=2.at n=5A166105
• Number of (n+2) X (6+2) 0..1 arrays with no 3 X 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 0 or 3 and no column sum 0 or 3.at n=18A258964
• Square array read by antidiagonals: T(m,n) = T(m,n-1)^2 - T(m,n-2)^2 + T(m,n-2) with T(1,n) = 1, T(m,0) = 1, and T(m,1) = m.at n=22A294082
• a(n) is the length of the disturbed prefix after n steps of the iterative process defined in the Comments.at n=47A387572
• a(n) is the length of the disturbed prefix after n steps of the iterative process defined in the Comments.at n=48A387572