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Floor( Pi * (3/2)^n ).
0

%I #8 Aug 08 2021 19:21:20

%S 3,4,7,10,15,23,35,53,80,120,181,271,407,611,917,1375,2063,3095,4642,

%T 6964,10446,15669,23504,35257,52885,79328,118993,178489,267734,401602,

%U 602403,903605,1355408,2033112,3049668,4574503,6861754,10292632,15438948,23158422

%N Floor( Pi * (3/2)^n ).

%C Suggested by the Mahler paper.

%H K. Mahler, <a href="http://carmaweb.newcastle.edu.au/mahler/docs/167.pdf">An unsolved problem on the powers of 3/2</a>, J. Austral. Math. Soc. 8 (1968), pp. 313-321.

%t Floor[Pi (3/2)^Range[0,40]] (* _Harvey P. Dale_, Aug 08 2021 *)

%K nonn

%O 0,1

%A _N. J. A. Sloane_, Apr 18 2003