34586161

Appears in sequences

• Number of nX7 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=13A208012
• Numbers that are both averages of consecutive primes and nontrivial prime powers.at n=27A263675
• a(n) is the least perfect square average of two consecutive primes with 2*n gap between them, or -1 if no such number exists.at n=29A360751