121321

Properties

Appears in sequences

• Number of nonnegative integer 3 X 3 matrices with sum of elements equal to n, under row and column permutations.at n=21A052365
• Primes with digital product = 12.at n=28A107697
• Number of length 2+3 0..n arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=35A248539
• Prime numbersat n=11416