0,2

a(0)=1, a(1)=2, a(n)=A000165(n)/2 for n>1.

a(n)=A032107(n), n>0. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 05 2008

Sequence in context: A012587 A012292 A012592 this_sequence A032107 A141307 A038049

Adjacent sequences: A121889 A121890 A121891 this_sequence A121893 A121894 A121895

nonn

Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Sep 01 2006