23049601

Appears in sequences

• a(n) and floor(a(n)/6) are both squares; i.e., squares that remain squares when written in base 6 and last digit is removed.at n=13A055851
• a(n) = 10*a(n-1)-a(n-2)-4 with a(1)=1 and a(2)=3.at n=8A171640
• Number of n X 4 arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, with every occupancy equal to zero or two.at n=8A221274
• Sin(arcsin(n)- 3 arccos(n))^2.at n=5A239609