[N]

[..]
  1. NA
  2. NBINTERNAL
  3. NBLEAF
  4. NBLEAFDBT
  5. NEXTINDEX
  6. NEXTKEY
  7. NOTFUNCTION
  8. NOVFLSIZE
  9. NO_HEADER
  10. NO_HIGHEST_ACTIVE_REG
  11. NO_LOWEST_ACTIVE_REG
  12. NPART
  13. NRINTERNAL
  14. NRLEAF
  15. NRLEAFDBT
  16. NULL
  17. NULL_DEVICE
  18. NUM_FAILURE_ITEMS
  19. NUM_NONREG_ITEMS
  20. NUM_REG_ITEMS
[..]