This is probably not the best use of my time, but I wanted to do this to point out how ridiculous answers like 43 and 49 are...
1. 123456 2. 123465 3. 123546 4. 123564 5. 123645
6. 123654 7. 124356 8. 124365 9. 124536 10. 124563
11. 124635 12. 124653 13. 125346 14. 125364 15. 125436
16. 125463 17. 125634 18. 125643 19. 126345 20. 126354
21. 126435 22. 126453 23. 126534 24. 126543 25. 132456
26. 132465 27. 132546 28. 132564 29. 132645 30. 132654
31. 134256 32. 134265 33. 134526 34. 134562 35. 134625
36. 134652 37. 135246 38. 135264 39. 135426 40. 135462
41. 135624 42. 135642 43. 136245 44. 136254 45. 136425
46. 136452 47. 136524 48. 136542 49. 142356 50. 142365
I made 50 different combinations without ever even changing the first cipher. Since no cipher also counts as an entry, that leaves 5,040 possible combinations (7!).
 "Submachine 5: the root"){kind=icon}