0,2

a(n) = 2*a(n - 1) + 3*a(n - 2) - a(n - 3)

a(0) = 1, a(1) = 3, a(2) = 9, a(3) = 26

Cf. A101399, A101400.

Sequence in context: A123941 A018919 A005774 this_sequence A119826 A027915 A114982

Adjacent sequences: A101166 A101167 A101168 this_sequence A101170 A101171 A101172

easy,nonn

J. F. J. Laros (jlaros(AT)liacs.nl), Jan 22 2005