1646042

Appears in sequences

• Numbers k such that 49*2^k+1 is prime.at n=23A032374
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors.at n=21A238929
• Number of (1+1)X(n+1) 0..3 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors.at n=6A238930