Sequence does not retrieve results as expected

Hi Experts,

Sequence is not giving output as expected when we tried to follow the below steps as in help.sap.com,

CREATE SEQUENCE - SAP HANA SQL and System Views Reference - SAP Library

Instead of giving an output as 12 and 13, it gives as 12 and 12. (Problem occurs in both SP8 and SP9)

Could you please advise us if we need to set any Admin level parameter to make sequence work as in help.sap.com link.

Thanks and Regards,

Ram