%I A055276
%S A055276 1,10,110,1210,13310,146410,1610510,17715610,194871710,2143588810,
%T A055276 23579476910,259374246010,2853116706110,31384283767210,345227121439310,
%U A055276 3797498335832410,41772481694156510,459497298635721610
%N A055276 First differences of 11^n (A001020).
%D A055276 A. H. Beiler, Recreations in the Theory of Numbers, Dover, N.Y., 1964, 
               pps. 194-196.
%H A055276 Milan Janjic, <a href="http://www.pmfbl.org/janjic/">Enumerative Formulas 
               for Some Functions on Finite Sets</a>
%F A055276 a(n)=11a(n-1)+[(-1)^n]*C(1, 1-n).
%e A055276 a(n)=10*11^(n-1); a(0)=1. G.f.(x)=(1-x)/(1-11x).
%t A055276 Table[EulerPhi[11^n],{n,0,40}] [From Vladimir Orlovsky (4vladimir(AT)gmail.com), 
               Nov 10 2009]
%Y A055276 Cf. A001020.
%Y A055276 Sequence in context: A102092 A105279 A057093 this_sequence A143749 A049398 
               A055530
%Y A055276 Adjacent sequences: A055273 A055274 A055275 this_sequence A055277 A055278 
               A055279
%K A055276 easy,nonn
%O A055276 0,2
%A A055276 Barry E. Williams, May 29 2000
%E A055276 More terms from James A. Sellers (sellersj(AT)math.psu.edu), May 31 2000