Represents flags for RDB$SEQUENCES system table.

    Bit
    Position   Description

    0          Sequence will cycle.
    1          Sequence is ordered.
    2          Sequence is random.
    3          Indicates that this is a system sequence and may not be
               dropped.
    4          Indicates that there was no minimum value specified.
    5          Indicates that there was no maximum value specified.
    6          Indicates that this is a column IDENTITY sequence.
    7          Indicates that this sequence will wait for locks.
    8          Indicates that this sequence will not wait for locks.