A157782 Denominator of Bernoulli(n, -1/2).

1, 1, 12, 4, 240, 16, 1344, 64, 3840, 256, 33792, 1024, 5591040, 4096, 49152, 16384, 16711680, 65536, 104595456, 262144, 173015040, 1048576, 289406976, 4194304, 22900899840, 16777216, 201326592, 67108864, 116769423360, 268435456

Offset: 0

Author

N. J. A. Sloane, Nov 08 2009

Keywords

• nonn
• frac

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..250

Crossrefs

For numerators see A157781.

Programs

Mathematica

Table[Denominator[BernoulliB[n, -1/2]], {n, 0, 50}] (* Vincenzo Librandi, Mar 19 2014 *)