224720
domain: N
Appears in sequences
- Size of acyclic domain of size n based on the alternating scheme.at n=16A144685
- The average of primes dividing n and n+1 is the same.at n=6A227754
- Number of nX3 0..1 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X4 0..1 array.at n=5A228981
- Number of nX6 0..1 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X7 0..1 array.at n=2A228984
- T(n,k) = number of nXk 0..1 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X(k+1) 0..1 array.at n=30A228986
- T(n,k) = number of nXk 0..1 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X(k+1) 0..1 array.at n=33A228986
- Numbers k such that k and k+1 have different (ordered) prime signatures and d_3(k) = d_3(k+1), where d_3 is A007425.at n=19A333057