128556

Appears in sequences

• a(n) = (sigma(2*n) - sigma(n))*Lucas(n) where Lucas(n) = A000204(n) and sigma(n) = A000203(n) is the sum of divisors of n.at n=16A225525
• Number of length n+5 0..5 arrays with some disjoint triples in each consecutive six terms having the same sum.at n=2A248065
• T(n,k)=Number of length n+5 0..k arrays with some disjoint triples in each consecutive six terms having the same sum.at n=23A248068
• Number of length 3+5 0..n arrays with some disjoint triples in each consecutive six terms having the same sum.at n=4A248071