Search: id:A005347
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%I A005347 M0690
%S A005347 1,1,2,3,5,8,13,20,34,53,88,143,236,387,641,1061,1763,2937,4903,8202,
%T A005347 13750,23095
%N A005347 First differences of A005579.
%C A005347 This is example 42 in Guy's paper. The first seven terms are the same 
               as the Fibonacci sequence A000045. Subsequent terms deviate from 
               Fibonacci. - T. D. Noe (noe(AT)sspectra.com), May 08 2006
%D A005347 R. K. Guy, The second strong law of small numbers. Math. Mag. 63 (1990), 
               no. 1, 3-20.
%D A005347 Laatsch, Richard; Measuring the abundancy of integers. Math. Mag. 59 
               (1986), no. 2, 84-92.
%D A005347 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%F A005347 a(n)=A005579(n+1)-A005579(n) - T. D. Noe (noe(AT)sspectra.com), May 08 
               2006
%Y A005347 Cf. A005579 (least number of distinct prime factors in even numbers having 
               an abundancy index >n).
%Y A005347 Sequence in context: A092834 A080106 A158415 this_sequence A100582 A093093 
               A137290
%Y A005347 Adjacent sequences: A005344 A005345 A005346 this_sequence A005348 A005349 
               A005350
%K A005347 nonn,nice
%O A005347 1,3
%A A005347 N. J. A. Sloane (njas(AT)research.att.com), R. K. Guy

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