524318

Appears in sequences

• Sums of two (not necessarily distinct) Mersenne primes (A000668).at n=23A171251
• Number of (n+1) X (4+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nonincreasing x(i,j)-x(i-1,j) in the j direction.at n=17A250738