467696

Appears in sequences

• Conjectured largest number having n representations as the sum of two twin primes p + q with p >= q.at n=30A212613
• Number T(n,k) of ordered pairs (p,q) of permutations of [n] with equal up-down signatures and p(1)=q(1)=k if n>0; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=39A262372
• Number T(n,k) of ordered pairs (p,q) of permutations of [n] with equal up-down signatures and p(1)=q(1)=k if n>0; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=42A262372
• Number of ordered pairs (p,q) of permutations of [n] with equal up-down signatures and p(1)=q(1)=3.at n=5A321059
• Number of ordered pairs (p,q) of permutations of [n] with equal up-down signatures and p(1)=q(1)=6.at n=2A321062