What is begining of N number we sould pickup for Vertcoin ?

[Vertcoin]

According to https://bitcointalk.org/index.php?topic=404364, Vertcoin team want to launch on 11 Jan 2014, We focus only CPU mining. The problem come out when we pickup N = 32768. Our core-i5 cannot mining the coin. So we decided to lower the N value but it needs to be more than 1024 ( Currently Litecoin using).

Thank you for your vote.