18437

Appears in sequences

• T(n,n-5), array T as in A038730.at n=6A038734
• T(n,n-6), array T as in A038792.at n=16A038796
• Number of triangular partitions of n of order 4.at n=18A084446
• Numbers n such that n and its reversal are distinct brilliant numbers (A078972).at n=28A097435
• Numbers n such that n, p=prime(n) and q=prime(p) have the same sum of digits.at n=31A261142
• a(1)=2, a(n+1)=a(n)+p, where p is the largest prime <a(n) if a(n) is odd or the smallest prime >a(n) if a(n) is even.at n=13A277263
• Numbers k such that 64 * 3^k + 1 is prime.at n=34A387761