Here is the result of a search I made on Jewishgen. What is the
meaning of n the "index number" (3rd column)? Can it be used to obtain
more detailed information?

OKUN 1888 198 Itska

June Genis
Hemet, CA
Researching OKUN, GENIS, ETTINGER, RIVKIN (Russian Empire)
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June Genis, 650--851-5224
Hemet, CA
Researching: GENIS, OKUN, SUSMAN, ETTINGER, KESSLER/CHESLER (Russian/Polish Empires)