a(n) is the maximum prime factor of the concatenation of all the previous terms, with a(1)=1, a(2)=2.
A280893
a(n) is the maximum prime factor of the concatenation of all the previous terms, with a(1)=1, a(2)=2.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =41a(4) =43a(5) =1063a(6) =5479a(7) =111031a(8) =790000148543a(9) =790000148543
External references
- oeis: A280893