1531657

Properties

Appears in sequences

• Number of nX2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,4,1,2 for x=0,1,2,3,4.at n=20A196140
• First in a sequence of 9 consecutive primes all of the form 4n+1.at n=24A226905
• Prime numbersat n=116384