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A112854
Primes of the form (2*n)!/n!-1.
2
11, 665279, 3497296636753919999, 1960781468160819415703172080467967999999
OFFSET
1,1
COMMENTS
Next term (2*114)!/114!-1 has 254 decimal digits.
CROSSREFS
A112853 gives n such that (2*n)!/n!-1 is prime, A112856 gives primes of the form (2*n)!/n!+1.
Sequence in context: A219013 A243130 A253632 * A211238 A014127 A049192
KEYWORD
nonn
AUTHOR
Hugo Pfoertner, Sep 25 2005
STATUS
approved