A134693 a(n)=A133806(n)+A133806(n+6).

3, 9, 6, 18, 12, 36, 24, 72, 48, 144, 96, 288, 192, 576, 384, 1152, 768, 2304, 1536, 4608, 3072, 9216, 6144, 18432, 12288, 36864, 24576, 73728, 49152, 147456, 98304, 294912, 196608, 589824, 393216, 1179648, 786432, 2359296, 1572864, 4718592, 3145728

Offset: 0

Author

Paul Curtz, Jan 27 2008

Keywords

• nonn

Formula

a(n)=3*A074323(n+1).

a(2n)=A007283(n). a(2n+1)=3*A007283(n).

O.g.f.: 3(1+3x)/(1-2x^2). - R. J. Mathar, Jul 22 2008

Extensions

Edited and extended by R. J. Mathar, Jul 22 2008