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A060430
Residue C(2^n,n) mod C(2^n,2).
2
0, 0, 0, 20, 0, 1344, 0, 8160, 0, 349184, 0, 1397760, 0, 0, 306774016, 268431360, 0, 7635468288, 0, 494779760640, 942438088704, 0, 0, 105553109975040, 0, 0, 0, 6004799480791040, 0, 192153583922184192, 0, 576460752169205760, 0, 49191317527028826112, 0
OFFSET
1,4
LINKS
FORMULA
a(n)=Mod[A014070, A006516]=Mod[C(2^n, n), C(2^n, 2)]
MAPLE
for n from 1 to 60 do printf(`%d, `, binomial(2^n, n) mod binomial(2^n, 2)) od:
MATHEMATICA
Table[Mod[Binomial[2^n, n], Binomial[2^n, 2]], {n, 40}] (* Harvey P. Dale, Feb 11 2015 *)
CROSSREFS
Sequence in context: A221335 A298672 A198800 * A365911 A040404 A040405
KEYWORD
easy,nonn
AUTHOR
Labos Elemer, Apr 11 2001
EXTENSIONS
More terms from James A. Sellers, Apr 12 2001
Offset corrected by Harry J. Smith, Jul 05 2009
STATUS
approved