251904

Appears in sequences

• Numbers m such that prime(m) + Fibonacci(m) is prime.at n=20A050180
• a(n) = S1(n,1), where S1(n, t) = Sum_{k=0..n} (k^t * Sum_{j=0..k} binomial(n,j)).at n=12A089658
• a(n) = 2^(n-2)*(n-2)^2+2^(n-1).at n=11A217527
• Nonprime Heinz numbers of integer partitions whose product is equal to their sum.at n=24A301988