282461

Properties

Appears in sequences

• a(n) = T(n,n+1) + T(n,n+2) + ... + T(n,2n), T given by A027082.at n=11A027108
• Numbers N such that concatenation of N, N, and x generates a prime for x=1 and x=3 and x=7 and x=9.at n=33A210515
• Discriminants of real quadratic number fields with 3-class rank 2.at n=29A269318
• Prime numbersat n=24641