Following reports that President Obama phoned Warren Buffett from vacation in Martha’s Vineyard to discuss the economy, The “Oracle of Omaha” is hosting a fund-raiser for Obama’s re-election, billed as an “economic forum,” Page Six has learned. Tickets for the event at New York’s Four Seasons restaurant on Sept. 30 start at $10,000 a head, with VIP tickets a budget-boosting $35,800. Guests get an hour of “Q&A moderated by one of President Obama’s closest economic advisors, Austan Goolsbee.” VIP ticket-holders get a “private reception for about 20 minutes prior to the dinner.” A blurb with the invite adds, “As all guests are seated for dinner, Buffett will go around to all tables and shake hands, then he and Austan will sit for the program and discussion.” What will be discussed is Buffett’s recent highly publicized claim that the wealthy should pay higher taxes. But as one invitee sniffed, “Nothing like advocating tax equality when you are charging $35,800 a ticket.”