I have a newborn who was born with an absent digit on the right hand, bald patch on the frontal bone and a floppy right ear. Any ideas of a syndrome?

Start with. Evaluation by your local pediatrician. They can decide whether referral to a clinical geneticist is required.
Genetic Evaluation. There are many syndromes that might demonstrate varying degrees of the findings described. I suggest that you refer the child to a clinical geneticist for examination and evaluation.