0001193125-04-110002 11-K 2 20031231 20040628 SEI CORP 0000350894 6211 231707341 PA 1231 11-K 34 000-10200 04884245 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100 6106761000 1 FREEDOM VALLEY DRIVE OAKS PA 19456-1100 11-K 1 d11k.htm FORM 11-K EX-23.1 2 dex231.htm CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM