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A151910 First differences of A001682. 2

%I

%S 21,21,23,21,23,21,21,23,21,23,21,23,21,21,23,21,23,21,23,21,21,23,21,

%T 23,21,23,21,21,23,21,23,21,23,21,21,23,21,23,21,23,21,21,23,21,23,21,

%U 23,21,21,23,21,23,21,23,21,21,23

%N First differences of A001682.

%C a(n) = A001682(n+1) - A001682(n).

%H Reinhard Zumkeller, <a href="/A151910/b151910.txt">Table of n, a(n) for n = 1..1000</a>

%o (Haskell)

%o a151910 n = a151910_list !! (n-1)

%o a151910_list = zipWith (-) (tail a001682_list) a001682_list

%o -- _Reinhard Zumkeller_, Oct 10 2011

%K nonn

%O 1,1

%A _Harvey P. Dale_, Aug 08 2009

%E Offset corrected and initial term added by _Reinhard Zumkeller_, Oct 10 2011

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Last modified June 4 01:54 EDT 2020. Contains 334812 sequences. (Running on oeis4.)