67270

Appears in sequences

• Numbers k such that core(k) = b(k,1)*b(k,0) where b(k,1) is the number of 1's in binary representation of k, b(k,0) the number of 0's and core(k) the squarefree part of k.at n=5A071639
• Unitary weird numbers (A064114) that are not weird numbers (A006037).at n=8A328562
• Infinitary weird numbers (A306984) whose number of divisors is not a power of 2.at n=9A335936
• Bi-unitary weird numbers (A292986) that are not exponentially odd numbers (A268335).at n=8A335939