51829

Properties

Appears in sequences

• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1100-1111-0100 pattern in any orientation.at n=16A146710
• Primes p1 such that the sum of 9 consecutive primes, p1+p2+p3+p4+p5+p6+p7+p8+p9, and the three sums (p1+p2+p3), (p4+p5+p6), (p7+p8+p9) are all prime numbers.at n=21A343683
• Primes p such that 5*p+6, 5*p+12, 5*p+18 and 5*p+24 are all primes.at n=24A355577
• Prime numbersat n=5303