1838736

Appears in sequences

• Squares whose external digits form a square and whose internal digits form a prime.at n=21A076395
• Squares s(n) such that cube(n)-square(n)-1 and cube(n)+square(n)+1 are primes.at n=27A155931
• Number of n X 6 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.at n=13A207401