%I
%S 7,12,23,42,78,142,262,482,887,1630,2999,5516,10146,18660,34322,63128,
%T 116111
%N Number of (n,3) FreimanWyner sequences.
%C "The values for n <= 3 are straightforward."
%D I. F. Blake, The enumeration of certain run length sequences, Information and Control, 55 (1982), 222237.
%F Appears to satisfy a linear recurrence with characteristic polynomial (1+x)(1+x^2)(1xx^2x^3).  _Ralf Stephan_, Dec 04 2004
%Y Cf. A006355, A097926.
%K nonn
%O 4,1
%A _N. J. A. Sloane_, Sep 05 2004
