75239

Properties

Appears in sequences

• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 0010-1010-1111 pattern in any orientation.at n=17A146779
• The smaller member prime(i) of an emirp pair (prime(i),prime(j)), such that the digit sum of i equals the digit sum of j.at n=27A178613
• Primes p such that A272207(p) = p.at n=32A276030
• Emirps that can be written as p*q+p+q where p and q are emirps.at n=16A352249
• Number of irredundant sets in the n-trapezohedral graph.at n=7A391916
• Prime numbersat n=7415