12261061

Appears in sequences

• a(n) is the smallest Carmichael number (A002997) divisible by the n-th prime, or 0 if no such number exists.at n=33A135721
• Increasing gaps between 2-pseudoprimes (upper end).at n=25A175737
• The lesser of twin Carmichael numbers: a pair of consecutive Carmichael numbers (A002997) without a non-prime-power weak Carmichael number (A087442) between them.at n=18A365022