SELECT 1 , 2 ,3 ,4 ,5  FROM DUAL
UNION ALL
SELECT 16,17,18,19,6 FROM DUAL
UNION ALL
SELECT 15,24,25,20,7 FROM DUAL
UNION ALL
SELECT 14,23,22,21,8 FROM DUAL
UNION ALL
SELECT 13,12,11,10,9 FROM DUAL

declare
    n number :=5;
    m number :=11;
    a number;
    begin
    for x in 1..M loop
    dbms_output.put_LINE(' ');
    for y in 1..m loop
    a:=x*y;
   dbms_output.put(LPAD(a,4));
   exit when a= x*10;
   end loop;
   end loop;
  end;

1   2   3   4   5   6   7   8   9  10
2   4   6   8  10  12  14  16  18  20
3   6   9  12  15  18  21  24  27  30
4   8  12  16  20  24  28  32  36  40
5  10  15  20  25  30  35  40  45  50
6  12  18  24  30  36  42  48  54  60
7  14  21  28  35  42  49  56  63  70
8  16  24  32  40  48  56  64  72  80
9  18  27  36  45  54  63  72  81  90
10  20  30  40  50  60  70  80  90 100

SELECT 1 , 2 ,3 ,4 ,5  FROM DUAL
UNION ALL
SELECT 16,17,18,19,6 FROM DUAL
UNION ALL
SELECT 15,24,25,20,7 FROM DUAL
UNION ALL
SELECT 14,23,22,21,8 FROM DUAL
UNION ALL
SELECT 13,12,11,10,9 FROM DUAL

1  2  3  4  5

16 17 18 19 6

15 24 25 20 7

14 23 22 21 8

13 12 11 10 9