580596

Appears in sequences

• Numbers n such that 69*2^n-1 is prime.at n=75A050560
• Number of (n+2)X(1+2) 0..1 arrays with the (lower) medians of each row and column unequal to its neighbors.at n=7A238032
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with the (lower) medians of each row and column unequal to its neighbors.at n=28A238037