34547

Appears in sequences

• a(n) is the smallest composite number c such that A002110(n) + c is prime.at n=39A038771
• Composite numbers n such that sigma(n+24) = sigma(n) + 24.at n=22A054983
• Composite numbers not divisible by 2 or 3 which in base 3 contain their largest proper factor as a substring.at n=29A063132
• Composite numbers which in base 9 contain their largest proper factor as a substring.at n=5A063172
• Duplicate of A063172.at n=5A063879
• Number of n-node biconnected graphs with girth at least 5.at n=13A140440
• Number of (2n)X(2n) 0..2 symmetric matrices with every element equal to two horizontal and vertical neighbors, and new values 0..2 introduced in lower triangle row major order.at n=4A210897
• Sequence of pairwise relatively prime numbers of class P_6 (see comment in A275246).at n=21A275251
• The index of prime(n) in A337182.at n=35A338222