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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A248940 Wrecker ball sequence starting with 7.

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%I A248940 #6 May 16 2019 01:32:32
%S A248940 7,6,4,1,-3,2,-4,3,-5,-14,-24,-13,-1,12,-2,13,29,46,28,9,-11,10,-12,
%T A248940 11,35,60,34,61,33,62,32,63,31,64,30,65,101,138,100,139,99,58,16,-27,
%U A248940 17,-28,18,-29,19,-30,20,-31,21,-32,22,-33,23,-34,24,-35,25,-36
%N A248940 Wrecker ball sequence starting with 7.
%C A248940 Finite sequence with A228474(7) + 1 = 1726 terms;
%C A248940 row 7 of table A248939: a(n) = A248939(7,n) for n = 0..1725;
%C A248940 A248952(7) = -6362 <= a(n) <= 6843 = A248953(7).
%H A248940 Reinhard Zumkeller, <a href="/A248940/b248940.txt">Table of n, a(n) for n = 0..1725</a>
%H A248940 Gordon Hamilton, <a href="http://www.youtube.com/watch?v=mQdNaofLqVc">Wrecker Ball Sequences</a>, Video, 2013
%o A248940 (Haskell)
%o A248940 a248940 n = a248940_list !! n
%o A248940 a248940_list = a248939_row 7
%Y A248940 Cf. A248939, A228474, A248941 (start with 17), A248942 (start with 20).
%K A248940 sign,fini,full
%O A248940 0,1
%A A248940 _Reinhard Zumkeller_, Oct 18 2014