Например, для n = 5 :
## 2,718
####### 7,389
20,085
#### 54,598
######## 148,413
const
e=2.718281828459045;
var
res: real;
i,n,ol,j: integer;
begin
writeln('Введите N');
readln(n);
res:=1;
for i:=1 to n do
begin
res:=res*e;
ol:=trunc(res) mod 10;
for j:=1 to ol do write('#');
writeln(res);
end;
end.