Question 255435
1.{{{3+5=8}}}

2.{{{8+5=3+5+5=3+(5)2=13}}}

3.{{{13+5=8+5+5=3+(5)3=18}}}

{{{3+5n=2218}}}

{{{5n=2215}}}

{{{n=443}}}
2218 is the 443rd term.