A066778 - OEIS

%I #10 Jan 03 2016 17:47:34

%S 1,3,6,11,18,29,46,71,109,166,252,381,575,866,1303,1959,2944,4421,

%T 6637,9962,14949,22430,33652,50486,75737,113613,170428,255650,383484,

%U 575235,862861,1294300,1941459,2912198,4368307,6552471,9828717,14743086

%N a(n) = Sum_{i=1..n} floor((3/2)^i).

%H Harry J. Smith, <a href="/A066778/b066778.txt">Table of n, a(n) for n = 1..300</a>

%o (PARI) { s=0; for (n=1, 300, write("b066778.txt", n, " ", s+=floor((3/2)^n)) ) } \\ _Harry J. Smith_, Mar 24 2010

%Y Cf. A002379.

%K nonn

%O 1,2

%A _Benoit Cloitre_, Jan 18 2002

%E Definition corrected by _Harry J. Smith_, Mar 24 2010