%I #6 Mar 26 2015 11:36:16

%S 1,1,-2,2,2,1,1,1,-7,2,2,5,1,1,1,1,1,-14,2,2,2,10,1,1,1,1,1,1,1,-23,2,

%T 2,2,2,17,1,1,1,1,1,1,1,1,1,-34,2,2,2,2,2,26,1,1,1,1,1,1,1,1,1,1,1,

%U -47,2,2,2,2,2,2,37,1,1,1,1,1,1,1,1,1,1,1,1

%N First differences of A255437.

%H Reinhard Zumkeller, <a href="/A255507/b255507.txt">Table of n, a(n) for n = 1..10000</a>

%o (Haskell)

%o a255507 n = a255507_list !! (n-1)

%o a255507_list = zipWith (-) (tail a255437_list) a255437_list

%Y Cf. A255437, A255878.

%K sign

%O 1,3

%A _Reinhard Zumkeller_, Mar 23 2015