91160

Appears in sequences

• Numbers k such that k*Sum_{d|k} 1/sigma(d) is an integer.at n=31A069166
• Number of length n+4 0..6 arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.at n=1A249464
• T(n,k)=Number of length n+4 0..k arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.at n=22A249466
• Number of length 2+4 0..n arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.at n=5A249468