Oracle序列存储在哪个表空间中？

CREATE SEQUENCE sequence_name
  [INCREMENT BY increment]
  [START WITH start]
  [MAXVALUE maxvalue | NOMAXVALUE]
  [MINVALUE minvalue | NOMINVALUE]
  [CYCLE | NOCYCLE]
  [CACHE cache | NOCACHE]
  [ORDER | NOORDER];

CREATE SEQUENCE my_sequence
  START WITH 1
  INCREMENT BY 1
  NOMAXVALUE
  NOMINVALUE
  NOCYCLE
  CACHE 10;

SELECT tablespace_name
FROM user_sequences
WHERE sequence_name = 'my_sequence';