Zerinvary Lajos made nearly 5000 contributions to the OEIS during the period 2004-2010. But we have not heard from him for several years, and none of the email addresses we have for him are active.
If anyone can supply an email address for him, please contact Neil Sloane, njasloane(AT)gmail.com.
April 9, 2014: I have just heard that Zerinvary Lajos passed away three years ago. This is very sad news, and we will miss him very much. Neil Sloane