OFFSET
1,1
MATHEMATICA
Select[Range[10^4], IntegerQ[6! (2 # - 7)!/(#! (# - 1)!)] &] (* Arkadiusz Wesolowski, Sep 06 2011 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from David W. Wilson, Dec 11 1999
Offset corrected and 2 initial terms added by Arkadiusz Wesolowski, Sep 06 2011
STATUS
approved