1,1

G.f.: [x(3+4x-4x^2)]/[(1-x-x^2)(1-x)^2]. - Ralf Stephan, Apr 28 2004

Sequence in context: A031378 A144391 A024836 this_sequence A154300 A051805 A022264

Adjacent sequences: A023550 A023551 A023552 this_sequence A023554 A023555 A023556

nonn

Clark Kimberling (ck6(AT)evansville.edu)