Get records next sequential number in record producer

[Dan Belostotsk1]

Hi Guys, need your help.
 I have a custom table(u_numbers_test) and a custom field (u_number) to manage record numbering.
 Set as follows: 

 u_number dictionary default value set as follows:

This works fine, and each time I insert a new record from the list I get the next sequential number (ex: NT0001001, NT0001002, ....) , as expected.

Next, I have a record producer on top of this table, I defined a custom variable to get the next sequential number 
as follows:

 It works, and it generates the next number, but it jumps 9 numbers each time the script runs (ex from this record producer I'll get NT0001001, NT0001010, NT0001019 etc) each time i "Try it".

How can I get the next sequential number from my Record Producer? 

Thanks.

[vinothkumar]

Right click and configure dictionary, you will find a script include for the default value and you can use the same

[tvani]

Number gets auto inserted with the default value set on the custom Table. You need not have a number mapping variable on your record producer. 

Capture any other details that are required for the custom table, number gets autopopulated.

Thanks & Regards,

V