55131

Appears in sequences

• Number of degeneracies on the sets of ordinary trees with n vertices according to a topological index.at n=11A121223
• Numbers n such that n and n+-1 have 4 distinct prime factors.at n=5A168628
• Number of (n+1)X(1+1) 0..3 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements.at n=4A251160
• Number of (n+1)X(5+1) 0..3 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements.at n=0A251164
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements.at n=10A251167
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements.at n=14A251167
• Centered pentagonal numbers which are the products of four distinct primes.at n=5A382451