499321

Properties

Appears in sequences

• Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 1,3,2.at n=9A037611
• a(n) = Sum[2^(A047260(i)-1), {i,1,n}].at n=12A113828
• a(n) is the minimal prime of the form 4k+1 for which s=A008784(n) is the minimal positive integer such that s*a(n)-floor(sqrt(s*a(n)))^2 is a square.at n=24A145215
• Prime numbersat n=41484