464213

Properties

Appears in sequences

• Numbers of form 4^(3*k+l+1)/9 - 4^l/9 - 1/3 or 2*4^(3*k+l+2)/9 - 2*4^l/9 - 1/3, k,l>=0.at n=41A172143
• Odd numbers producing exactly 3 odd numbers in the Collatz (3x+1) iteration.at n=27A198584
• Prime numbers having no additional odd primes in their Collatz (3x+1) trajectory.at n=16A221476
• Odd numbers producing 3 decreasing odd numbers in the Collatz (3x+1) iteration.at n=24A228872
• Numbers of the form (2^(2*j + 6*k + 10) - 2^(2*j + 2) - 3)/9, with j,k >= 0.at n=9A342816
• a(n) = (85*4^n - 1)/3.at n=6A353957
• Prime numbersat n=38774