1288225
domain: N
Appears in sequences
- k^2 is a term if k^2 + (k-1)^2 and k^2 + (k+1)^2 are primes.at n=31A075577
- Number of nX5 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 0 vertically.at n=5A208075
- Number of 6 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 0 vertically.at n=4A208081
- Squares whose arithmetic mean of digits is 4 (i.e., the sum of digits is 4 times the number of digits).at n=15A316484