98313

Appears in sequences

• Number of numbers k which give 1 after applying exactly n iterations of the 3k+1 algorithm (if a number is even, divide it by 2; if it is odd, multiply by 3 and add 1). This total includes numbers k which also give 1 for a smaller number of iterations (i.e., for this sequence we do not assume the algorithm halts when 1 is reached).at n=48A082538
• INVERT transform of A058187, the tetrahedral numbers with repeats.at n=12A178441
• Least number having exactly two odd prime factors that differ by 2^n.at n=14A190358
• Number of length n+3 0..2 arrays with some disjoint pairs in every consecutive four terms having the same sum.at n=24A247527
• Numbers m with the property that its k-th smallest divisor, for all 1 <= k <= tau(m), contains exactly k "1" digits in its binary representation.at n=32A255401
• a(n) = Sum_{k=0..floor(n/2)} binomial(3*k,2*n-4*k).at n=17A392433