136741

Appears in sequences

• Strong pseudoprimes to base 29.at n=27A020255
• Strong pseudoprimes to base 83.at n=31A020309
• Odd composite numbers m for which A000111(m) == (-1)^( (m-1)/2 ) (mod m).at n=26A180942
• a(n) = Sum_{k=0..n} 2^k * A000009(k) * A000041(n-k).at n=12A347830