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%I #10 Oct 11 2017 21:58:00
%S 1,2,3,8,15,30,63,128,252,510,1012,2028,4056,8120,16230,32464,64923,
%T 129852,259711,519420,1038828,2077658,4155318,8310648,16621300,
%U 33242586,66485178,132970348,265940701,531881400,1063762799,2127525600
%N a(1)=1, a(n) = the multiple of n which is >= (sum{k=1 to n-1} a(k)) and is < (n + sum{k=1 to n-1} a(k)).
%H Michael De Vlieger, <a href="/A128022/b128022.txt">Table of n, a(n) for n = 1..3322</a>
%F a(1)=1, a(n) = n * ceiling(sum{k=1 to n-1} a(k) /n).
%t f[l_List] := Block[{n = Length[l] + 1}, Append[l, n*(Ceiling[Plus @@ l/n])]]; Nest[f, {1}, 33] (* _Ray Chandler_, Feb 12 2007 *)
%t Fold[Append[#1, #2 Ceiling@ Total[#1/#2]] &, {1}, Range[2, 32]] (* _Michael De Vlieger_, Oct 11 2017 *)
%Y Cf. A128020, A128023.
%K easy,nonn
%O 1,2
%A _Leroy Quet_, Feb 11 2007
%E Extended by _Ray Chandler_, Feb 12 2007
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