Lost Coin due to not backing up wallet.dat from old computer,

I had coins in Coinbase. Sent them to my laptop #1. Formatted & sold Laptop #1. Bought Laptop #2,… How do i get my coins back in the litecoin core prog.?

They are lost forever.

if you had a way to access the old harddirve you could recover the private keys from the harddrive…but since you sold the drive the keys are on…your screwed…