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First differences of A334950.
2

%I #13 May 26 2020 06:31:45

%S 0,-1,2,-2,4,-3,6,-4,0,-5,10,-6,12,-7,14,-8,0,-9,18,-10,0,-11,22,-12,

%T 0,-13,26,-14,0,-15,30,-16,0,-17,34,-18,36,-19,38,-20,0,-21,42,-22,0,

%U -23,0,-24,48,-25,0,-26,52,-27,0,-28,56,-29,0,-30,60,-31,0,-32,64,-33,66,-34,68,-35,0,-36,72,-37

%N First differences of A334950.

%C The absolute value of a(n) is also the length of the n-th vertical-line-segment in the diagram of A334950.

%H <a href="/index/Rea#Recaman">Index entries for sequences related to Recamán's sequence</a>

%F a(2k+1) = -(k + 1), k >= 0.

%Y Cf. A001478, A005132, A334950, A334951.

%K sign

%O 0,3

%A _Omar E. Pol_, May 17 2020