209412

Appears in sequences

• Number of length n+4 0..3 arrays with at most two downsteps in every 4 consecutive neighbor pairs.at n=4A255656
• T(n,k)=Number of length n+k 0..3 arrays with at most two downsteps in every k consecutive neighbor pairs.at n=32A255660
• Number of length n+5 0..3 arrays with at most two downsteps in every n consecutive neighbor pairs.at n=3A255665