A134367
a(n) = (n!)^(n-2).
Original entry on oeis.org
1, 1, 1, 6, 576, 1728000, 268738560000, 3252016064102400000, 4296582355504620109824000000, 828592942960967278432052230225920000000, 30067980714167580599742311330438184960000000000000000
Offset: 0
A134368
a(n) = ((2n)!)^(n+1).
Original entry on oeis.org
1, 4, 13824, 268738560000, 106562062388507443200000, 2283380023591730815784976384000000000000, 5785737804304645733190746102656048717392091545600000000000000
Offset: 0
Cf.
A000142,
A001044,
A000442,
A036740,
A134367,
A134368,
A134369,
A134370,
A134371,
A134374,
A134375.
A134366
a(n) = (n!)^(n-1).
Original entry on oeis.org
1, 1, 2, 36, 13824, 207360000, 193491763200000, 16390160963076096000000, 173238200573946282828103680000000, 300679807141675805997423113304381849600000000
Offset: 0
-
a:=n->mul(n!/k, k=1..n): seq(a(n), n=0..9); # Zerinvary Lajos, Jan 22 2008
restart:with (combinat):a:=n->mul(stirling1(n,1), j=3..n): seq(a(n), n=1..10); # Zerinvary Lajos, Jan 01 2009
-
Table[(n!)^(n - 1), {n, 0, 10}]
-
a(n) = (n!)^(n-1); \\ Michel Marcus, Dec 23 2015
A134369
a(n) = ((2n+1)!)^(n+1).
Original entry on oeis.org
1, 36, 1728000, 645241282560000, 6292383221978976013516800000, 4045146997974190235742848547815424000000000000, 363046466970952735968096996065196818096105852014637875200000000000000
Offset: 0
Cf.
A000142,
A001044,
A000442,
A036740,
A134366,
A134367,
A134368,
A134370,
A134371,
A134374,
A134375.
A134371
a(n) = ((2n)!)^n.
Original entry on oeis.org
1, 2, 576, 373248000, 2642908293365760000, 629238322197897601351680000000000, 12078744213598964456884373878200091017216000000000000
Offset: 0
Cf.
A000142,
A001044,
A000442,
A036740,
A134366,
A134367,
A134368,
A134369,
A134370,
A134374,
A134375.
Showing 1-5 of 5 results.