50312
domain: N
Appears in sequences
- a(n) = least 2k such that p is the least prime in a Goldbach partition of 2k, where p = prime(n).at n=41A025017
- a(0)=0, a(1)=1, a(n) = a(n-1) + (a(n-2) XOR n).at n=22A182537
- Number of distinct lines passing through 3 or more points in an n X n grid.at n=33A225606
- Numbers k such that k * 20^k - 1 is prime.at n=12A299383
- a(n) = 1 + Sum_{k=0..n-6} binomial(n-5,k) * a(k).at n=18A344493