Search: id:A050987
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%I A050987
%S A050987 4,11,39,99,192,326,429,521,545,517,448,354,276,212,117,72,42,24,13,6,
               5,
%T A050987 4,3,1
%N A050987 Number of n-digit left-truncatable primes.
%D A050987 Angell, I. O. and Godwin, H. J. "On Truncatable Primes." Math. Comput. 
               31, 265-267, 1977.
%H A050987 <a href="Sindx_Tri.html#tprime">Index entries for sequences related to 
               truncatable primes</a>
%H A050987 P. De Geest, <a href="http://www.worldofnumbers.com/truncat.htm">The 
               list of 4260 left-truncatable primes</a>
%H A050987 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               TruncatablePrime.html">Link to a section of The World of Mathematics.</
               a>
%H A050987 <a href="Sindx_Pri.html#primepop">Index entries for sequences related 
               to numbers of primes in various ranges</a>
%Y A050987 Cf. A033664, A024785, A032437, A020994, A024770, A052023, A052024, A052025, 
               A050986.
%Y A050987 Sequence in context: A149255 A149256 A149257 this_sequence A137191 A106269 
               A126758
%Y A050987 Adjacent sequences: A050984 A050985 A050986 this_sequence A050988 A050989 
               A050990
%K A050987 base,nonn,easy,fini,full
%O A050987 1,1
%A A050987 Eric Weisstein (eric(AT)weisstein.com)
%E A050987 Edited by Ray Chandler (rayjchandler(AT)sbcglobal.net), Mar 13 2007

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