254427
domain: N
Appears in sequences
- Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 2 X n array.at n=33A219803
- Number of 0..n arrays of length 6 with each element differing from at least one neighbor by 1 or less.at n=19A221598
- Third differences of A001521.at n=42A241576
- Semiprimes A001358(k) = p*q such that p*q+p+q and r*s+r+s are consecutive primes, where A001358(k+1)=r*s.at n=35A330478