%I A092539
%S A092539 1,3,6,13,27,55,110,220,441,883,1766,3532,7064,14129,28258,56517,113035,
%T A092539 226070,452140,904281,1808562,3617124,7234249,14468499,28936999,
%U A092539 57873998,115747997,231495994,462991989,925983979,1851967959,3703935918
%N A092539 Binary representation of a(n) equals first n terms of A051023.
%C A092539 a(n+1) = 2*a(n) + d, where d = 0/1 with no obvious rule. The sequence 
               is a digit representation of the central column of cellular automaton 
               Rule 30, A051023. Primes in the sequence, A092540.
%H A092539 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               Rule30.html">Rule 30</a>.
%F A092539 a(n)=FromDigits[Take[A051023, n], 2]
%e A092539 a(6) = 55_10 = 110111_2
%t A092539 a(n_) := FromDigits[Take[A051023, n], 2]
%Y A092539 Cf. A051023, A092540.
%Y A092539 Sequence in context: A079403 A065830 A055143 this_sequence A094386 A099036 
               A131246
%Y A092539 Adjacent sequences: A092536 A092537 A092538 this_sequence A092540 A092541 
               A092542
%K A092539 easy,nonn
%O A092539 1,2
%A A092539 Zak Seidov (zakseidov(AT)yahoo.com), Feb 27 2004