A280893 - cp's OEIS frontend

A280893 a(n) is the maximum prime factor of the concatenation of all the previous terms, with a(1)=1, a(2)=2.

n	a(n)
1	1
2	2
3	3
4	41
5	43
6	1063
7	5479
8	111031
9	790000148543
10	790000148543
11	326139075156576200419624217119
12	326139075156576200419624217119
13	326139075156576200419624217119
14	246787955464079218902570922322710067417716295997334514692275780099917

[1, 2, 3, 41, 43, 1063, 5479, 111031, 790000148543, 790000148543, 326139075156576200419624217119, 326139075156576200419624217119, 326139075156576200419624217119, 246787955464079218902570922322710067417716295997334514692275780099917]

cp's OEIS Frontend

A280893 a(n) is the maximum prime factor of the concatenation of all the previous terms, with a(1)=1, a(2)=2.

Table of values

List of values