195519

Appears in sequences

• Number of 2-cop-win graphs of order n.at n=8A220841
• Number of length n+5 0..6 arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four.at n=2A249083
• T(n,k) = Number of length n+5 0..k arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four.at n=30A249085
• Number of length 3+5 0..n arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four.at n=5A249088