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%I #13 Oct 25 2023 07:40:56
%S 0,31,48,61,70,78,85,91,96,100,105,108,112,115,118,121,124,126,128,
%T 131,133,135,137,139,140,142,144,145,147,148,150,151,152,154,155,156,
%U 157,158,160,161,162,163,164,165
%N a(n) = 100*log_10(n) rounded up.
%t Ceiling[100 Log10[Range[50]]] (* _Harvey P. Dale_, Jun 05 2021 *)
%Y Cf. A004222, A004223.
%Y Cf. A004218, A004221, A004227, A004230.
%K nonn
%O 1,2
%A _N. J. A. Sloane_
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