login
a(n) = floor(10^9/n).
10

%I #17 Aug 12 2023 11:04:39

%S 1000000000,500000000,333333333,250000000,200000000,166666666,

%T 142857142,125000000,111111111,100000000,90909090,83333333,76923076,

%U 71428571,66666666,62500000,58823529,55555555,52631578,50000000

%N a(n) = floor(10^9/n).

%H Seiichi Manyama, <a href="/A033423/b033423.txt">Table of n, a(n) for n = 1..10000</a>

%t Floor[10^9/Range[50]] (* _Wesley Ivan Hurt_, Mar 18 2023 *)

%o (Magma) [Floor(10^9/n): n in [1..40]]; // _Wesley Ivan Hurt_, Apr 04 2023

%o (PARI) a(n) = 10^9\n; \\ _Seiichi Manyama_, Aug 12 2023

%Y Cf. A033420, A033421, A033422, A033424, A033425, A033426, A057072.

%K easy,nonn

%O 1,1

%A _Jeff Burch_