A248942 - OEIS

%I #5 May 16 2019 01:32:32

%S 20,19,17,14,10,5,-1,6,-2,7,-3,8,-4,9,-5,-20,-36,-19,-37,-18,2,23,1,

%T -22,-46,-21,-47,-74,-102,-73,-43,-12,-44,-11,-45,-10,26,63,25,-14,

%U -54,-13,29,72,28,-17,-63,-16,32,81,31,82,30,-23,-77,-132,-76,-133

%N Wrecker ball sequence starting with 20.

%C Finite sequence with A228474(20) + 1 = 132897 terms;

%C row 20 of table A248939: a(n) = A248939(20,n) for n = 0..132896;

%C A248952(20) = -657367 <= a(n) <= 891114 = A248953(20).

%H Reinhard Zumkeller, <a href="/A248942/b248942.txt">Table of n, a(n) for n = 0..132896</a>

%H Gordon Hamilton, <a href="http://www.youtube.com/watch?v=mQdNaofLqVc">Wrecker Ball Sequences</a>, Video, 2013

%o (Haskell)

%o a248942 n = a248942_list !! n

%o a248942_list = a248939_row 20

%Y Cf. A248939, A228474, A248940 (start with 7), A248941 (start with 17).

%K sign,fini,full

%O 0,1

%A _Reinhard Zumkeller_, Oct 18 2014