1,2

Define a(1)=0, a(2)=24, a(3)=146*a(1)+72-a(2), a(4)=146*a(2)+72-a(1), then a(n)=146*a(n-2)+72-a(n-4)

Cf. A105843.

Sequence in context: A083541 A073763 A030021 this_sequence A129837 A042140 A042138

Adjacent sequences: A105841 A105842 A105843 this_sequence A105845 A105846 A105847

nonn

Pierre CAMI (pierrecami(AT)tele2.fr), Apr 22 2005