How to print Fibonacci Series by PL/SQL

Fibonacci Series

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* The Fibonacci numbers are the numbers in the following integer 

Sequence: 0 1 1 2 3 5 8 13 21

* The first two numbers in the fibonacci sequence are 0 and 1. and each subsequence nubmer

 is the sum  of the previous two.

-----------------------Start Codes----------------------------

set serveroutput on;

declare

first_no number := 0;

second_no number := 1;

series_lng number := 50;

febo_sum number := 0;

counter number := 1;

begin

dbms_output.put(first_no);

dbms_output.put(','||second_no);

series_lng := series_lng-2;

while (counter <= series_lng) loop

 febo_sum := first_no + second_no;

 dbms_output.put(','||febo_sum);

 first_no  := second_no;

 second_no := febo_sum;

 counter := counter + 1;

end loop;

dbms_output.new_line;

end;

Result: 0,1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,6765,10946,17711,28657,46368,75025,121393,196418,317811,514229,832040,1346269,2178309,3524578,5702887,9227465,14930352,24157817,39088169,63245986,102334155,165580141,267914296,433494437,701408733,1134903170,1836311903,2971215073,4807526976,7778742049