51207

Appears in sequences

• a(n) = a(n-1) + a(n-4); first four terms are 0,1,2,3.at n=34A078467
• Numbers k such that 10^k - 801 is prime.at n=31A271618
• Numbers k such that there is no prime p and index j < k such that A002182(k) = p * A002182(j).at n=18A272606