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a(n) = ceiling(Pi^(n*e)).
2

%I #26 Jan 06 2023 13:27:13

%S 1,23,505,11329,254434,5714357,128339633,2882400038,64736277049,

%T 1453922256330,32653869265130,733378399940297,16471061151498381,

%U 369926160190271627,8308229975861003526,186595847388277259848,4190785566084546949288,94121513992523815815370

%N a(n) = ceiling(Pi^(n*e)).

%H Vincenzo Librandi, <a href="/A121903/b121903.txt">Table of n, a(n) for n = 0..699</a>

%t Ceiling[Pi^(E Range[0, 20])] (* _Vincenzo Librandi_, Feb 21 2013 *)

%o (PARI) for(n=0,50, print1(ceil(Pi^(n*exp(1))), ", ")) \\ _G. C. Greubel_, Nov 06 2017

%o (Magma) C<i> := ComplexField(); [Ceiling(Pi(C)^(n*Exp(1))): n in [0..50]]; // _G. C. Greubel_, Nov 06 2017

%Y Cf. A121854, A121855, A121856, A121857, A121904.

%K nonn,easy

%O 0,2

%A _Mohammad K. Azarian_, Sep 01 2006

%E Offset corrected by _Georg Fischer_, Aug 18 2022

%E Offset corrected for b-file by _Sidney Cadot_, Jan 06 2023