44693

Appears in sequences

• Numbers n such that phi(n + phi(n)) = sigma(n).at n=21A074874
• Indices of primes in sequence defined by A(0) = 61, A(n) = 10*A(n-1) + 41 for n > 0.at n=22A101531
• Number of nX4 0..1 arrays with rows, diagonals and antidiagonals unimodal.at n=4A223665
• T(n,k)=Number of nXk 0..1 arrays with rows, diagonals and antidiagonals unimodal.at n=32A223669
• Number of 5 X n 0..1 arrays with rows, diagonals and antidiagonals unimodal.at n=3A223672
• a(n) = n*(7*n^2 + 15*n + 8)/6.at n=33A245301