43040

Appears in sequences

• T(n,k)=Number of length n+4 0..k arrays with no disjoint pairs in any consecutive five terms having the same sum.at n=36A247404
• Number of length 1+4 0..n arrays with no disjoint pairs in any consecutive five terms having the same sum.at n=8A247405
• a(n) = ((1 + sqrt(7))^n - (1 - sqrt(7))^n)/sqrt(7).at n=9A274520