84169
domain: N
Appears in sequences
- Strong pseudoprimes to base 39.at n=30A020265
- Strong pseudoprimes to base 66.at n=26A020292
- a(n) = T(n,2n-2), T given by A027023.at n=11A027051
- Numbers k such that phi(k) and cototient(k) are squares but k is not in A054755.at n=32A054756
- Squarefree terms of A372894 whose prime factors are neither elite (A102742) nor anti-elite (A128852).at n=24A372896