0,2

a(n) = 9a(n-1)-28a(n-2)+38a(n-3)-20a(n-4)+a(n-5)

g.f.: -(1-6*x+13*x^2-12*x^3+4*x^4)/(-1+9*x-28*x^2+38*x^3-20*x^4+x^5)

Cf. a(n)=A113439(4n+1).

Adjacent sequences: A113438 A113439 A113440 this_sequence A113442 A113443 A113444

Sequence in context: A037653 A092443 A108080 this_sequence A119976 A074547 A105479

nonn

Floor van Lamoen (fvlamoen(AT)hotmail.com), Nov 04 2005