%I A114546
%S A114546 4,5,6,7,5,6,7,8,9,6,7,8,9,10,11,7,8,9,10,11,12,13,5,6,7,8,9,6,7,8,9,10,
%T A114546 11,7,8,9,10,11,12,13,8,9,10,11,12,13,14,15,9,10,11,12,13,14,15,16,17,
               6,
%U A114546 7,8,9,10,11,7,8,9,10,11,12,13,8,9,10,11,12,13,14,15,9,10,11,12,13,14
%N A114546 A self-descriptive fractal sequence. Each element gives the length and 
               first term of a finite arithmetic sequence. Replace each finite sequence 
               by its length (or first term) and you recover the original infinite 
               sequence.
%e A114546 The first element is 4, describing the four-term arithmetic sequence 
               4, 5, 6, 7. The second element, 5, describes the five-term sequence 
               5, 6, 7, 8, 9.
%Y A114546 Cf. A114544, A114545, A114547.
%Y A114546 Sequence in context: A046345 A004445 A163875 this_sequence A067471 A102691 
               A014553
%Y A114546 Adjacent sequences: A114543 A114544 A114545 this_sequence A114547 A114548 
               A114549
%K A114546 easy,nonn
%O A114546 4,1
%A A114546 Kerry Mitchell (lkmitch(AT)gmail.com), Dec 07 2005