Feeding your dragons

[empress dee]

This is how much feed total you need for each level of dragon:

1. 20 (5 x 4)
2. 40 (10 x 4)
3. 80 (20 x 4)
4. 160 (40 x 4)
5. 320 (80 x 4)
6. 640 (160 x 4)
7. 1280 (320 x 4)
8. 2560 (640 x 4)
9. 5120 (1280 x 4)  

[empress dee]

10. 6656 (1664 x 4)
11. 8652 (2163 x 4)
12. 11, 248 (2812 x 4)
13. 14, 624 (3656 x 4)
14. 19, 012 (4753 x 4)
15. 24, 712 (6178 x 4)
16. 32, 128 (8032 x 4)
17. 41, 764 (10, 441 x 4)
18. 54, 296 (13, 574 x 4)  

[empress dee]

19.
20. 91, 760 (22,940 x 4)
21.
22. 155, 072 (38, 768 x 4)
23. 201, 592 (50, 398 x 4)
24. 262,072 (65, 518 x 4)
25. 340, 692 (85, 173 x 4)
26.
27.