232789

Appears in sequences

• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Fibonacci numbers), t = A000201 (lower Wythoff sequence).at n=35A025084
• 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=38A172143
• Odd numbers producing exactly 3 odd numbers in the Collatz (3x+1) iteration.at n=25A198584
• Odd numbers having no odd primes in their Collatz (3x+1) trajectory.at n=31A221475
• Odd numbers producing 3 decreasing odd numbers in the Collatz (3x+1) iteration.at n=22A228872
• Numbers of the form (2^(2*j + 6*k + 5) - 2^(2*j + 1) - 3)/9, with j,k >= 0.at n=16A342815