%I M0460
%S 1,1,2,3,4,5,5,6,7,8,9,10,10,10,11,12,13,14,15,16,16,17,17,18,19,20,
%T 21,22,23,24,24,25,26,26,27,28,29,30,31,32,33,34,34,34,34,35,36,37,37,
%U 38,39,40,41,42,43,44,45,46,46,47,47,48,48,49,50,51,52,52,53,54,55,56,57
%N a(n)=a(a(n1)3)+a(n+3a(n1)).
%D J. Arkin, D. C. Arney, L. S. Dewald and W. E. Ebel, Jr., Families of recursive sequences, J. Rec. Math., 22 (No. 22, 1990), 8594.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%K nonn,easy
%O 1,3
%A _N. J. A. Sloane_.
%E More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Mar 28 2003
