SQL & PL/SQL

Hi!

I created a sequence:

CREATE SEQUENCE "XXX"."FLIGHT_LEG_SEQ"
MINVALUE 0 MAXVALUE 100000 INCREMENT BY 1 START WITH 1 CACHE 20 NOORDER CYCLE ;

Sequence after inserting a row into table:

CREATE SEQUENCE "XXX"."FLIGHT_LEG_SEQ"
MINVALUE 0 MAXVALUE 100000 INCREMENT BY 1 START WITH 24 CACHE 20 NOORDER CYCLE ;

Here is the trigger that uses this sequence:

create or replace TRIGGER NEW_LEG_ID
BEFORE INSERT ON FLIGHT_LEGS
FOR EACH ROW
BEGIN
SELECT flight_leg_seq.NEXTVAL INTO :new.leg_id
FROM dual;
END;

The sequence is set to increment by 1, however the next value is 24? What could be the reason for this?

Thanks!