1974784

Appears in sequences

• Number of rooted toroidal maps with 2 faces and n vertices and without separating cycles or isthmuses.at n=18A006422
• Number of length n+5 0..6 arrays with no six consecutive terms having two times the sum of any two elements equal to the sum of the remaining four.at n=2A249231
• T(n,k)=Number of length n+5 0..k arrays with no six consecutive terms having two times the sum of any two elements equal to the sum of the remaining four.at n=30A249233
• Number of length 3+5 0..n arrays with no six consecutive terms having two times the sum of any two elements equal to the sum of the remaining four.at n=5A249236