566401

Appears in sequences

• Large-number statistic from the enumeration of domino tilings of a 3-pillow of order n.at n=12A112834
• Pseudoprimes to base 3 that are not squarefree.at n=12A244065
• Nonsquarefree numbers n = p_1^s_1...p_m^s_m (m > 1) such that (p_i^s_i - 1) | n-1 for all 0 < i <= m.at n=10A292815
• Pseudoprimes to base 3 that are not squarefree, including the non-coprime pseudoprimes.at n=13A306452