377778

Appears in sequences

• Sort then Add, a(1)=15.at n=25A033898
• Sort then Add, a(1)=21.at n=24A033901
• a(n) is the smallest number m such that for the n-digit number s=10^(n-1)+ m, 10*s+1, 10*s+3, 10*s+7 and 10*s+9 are primes.at n=31A097639