1869211

Appears in sequences

• Odd composites with increasing proportion of nontrivial non-witnesses of compositeness by the Miller-Rabin primality test.at n=21A090659
• Odd numbers with increasing numbers of bases to which they are strong pseudoprimes.at n=35A141768
• Squarefree numbers (from A005117) with prime divisors in a 2p-1 progression.at n=35A231814
• Record values in A265388.at n=36A265395
• Odd composite numbers k for which the number of witnesses for strong pseudoprimality of k equals phi(k)/4, where phi is the Euler totient function (A000010).at n=24A329759