131147

Appears in sequences

• Number of (n+1)X(2+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock equal.at n=3A236731
• Number of (n+1)X(4+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock equal.at n=1A236733
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock equal.at n=11A236737
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock equal.at n=13A236737
• Number of subsets of {1..n} whose elements have the same smallest prime factor.at n=34A339510