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Peak-trough transform of the prime-gap sequence (A001223).
1

%I #4 Mar 31 2012 14:39:53

%S 0,0,0,1,-1,1,-1,0,1,-1,1,0,-1,0,0,0,-1,1,0,-1,1,-1,0,3,0,-1,1,-1,0,3,

%T -1,1,-1,3,-1,0,0,-1,0,0,-1,3,-1,1,-1,0,0,0,-1,0,1,-1,3,0,0,0,-1,1,0,

%U -1,0,3,0,-3,0,3,-1,1,-3,0,0

%N Peak-trough transform of the prime-gap sequence (A001223).

%C The peak-trough transform is defined in A101941

%e a(4)=1 because A101949(4) is greater than one nearest neighbor on both sides, i.e. A101949(3) and A101949(5), but no more than one.

%Y Cf. A001223, A101941.

%K sign

%O 1,24

%A _Neil Fernandez_, Dec 22 2004