165841

Appears in sequences

• Numbers n such that 69*2^n-1 is prime.at n=66A050560
• a(n) = least composite number such that sigma(a(n)+n!) = sigma(a(n))+n! where sigma() = A000203.at n=9A054982
• Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=6, k=-1 and l=-1.at n=8A177181