Search: id:A085943
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%I A085943
%S A085943 1,2,3,4567,89,10,11,1213,14,15,161,7,181,9202,122,23,242526,27282,930,
%T A085943 31,323,33,43,5,3637,38,39,404142,434,445,46,47,4849,505,15253,545,55,
               6,
%U A085943 57,58,59,606,1626,3646,566,67,6869,70,71,727,37,4757,677,78,79,8081,82
%N A085943 Let S = 123456789101112131415..., the concatenation of the natural numbers; 
               partition this string into distinct squarefree numbers. To avoid 
               leading zeros, no number may end at the digit that comes before a 
               0 in S.
%e A085943 a(18) = 27282 because 27282 is squarefree, while 27, 272 and 2728 are 
               not and 2 has already been used.
%e A085943 a(19) = 930 because 9 is not squarefree and 93 would cause a(20) to have 
               a leading 0.
%Y A085943 Sequence in context: A038104 A097301 A020345 this_sequence A068661 A068826 
               A085944
%Y A085943 Adjacent sequences: A085940 A085941 A085942 this_sequence A085944 A085945 
               A085946
%K A085943 base,easy,nonn
%O A085943 0,2
%A A085943 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jul 14 2003
%E A085943 More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Feb 14 
               2005

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