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%I #7 Jul 21 2015 00:28:47
%S 0,1,21,331,4641,61051,771561,9487171,14358881,357947691,5937424601,
%T 85311670611,138428376721,4522712143931,79749833583241,
%U 177248169415651,5949729863572161,5447028499293771,559917313492231481
%N (Fractional part of 1.1^n) * 10^n.
%C a(n) = A001020(n) mod A011557(n).
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/FractionalPart.html">Fractional Part</a>
%e a(2) = (1.1^2 - floor(1.1^2))*10^2 = (1.21 - 1)*100 = 21.
%t Table[ FractionalPart[(11/10)^n] 10^n, {n, 0, 19}] (* _Robert G. Wilson v_, Feb 18 2004 *)
%Y Cf. A091946.
%K nonn
%O 0,3
%A _Reinhard Zumkeller_, Feb 16 2004