74253

Appears in sequences

• Numbers k such that 2*10^k + R_k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=20A056700
• Numbers n such that n^2-9 is divisible by consecutive primes beginning with 2.at n=30A217277
• Number of partitions p of n such that the number of parts is not a part and max(p) - min(p) is not a part.at n=46A241385