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A064290 First number of height n in Recamán's sequence A005132. 11

%I

%S 1,3,6,13,20,43,62,113,224,367,494,833,1815,3379,5551,9169,17864,

%T 32978,58964,106218,131313,155719,180118,591890,881467,1345004,

%U 3012446,5728819,9309579,17512700,25641318,52978675,61998980,125130665,244636214,280766754,566273517,1031389697,2182394227,3045423658,3454917187

%N First number of height n in Recamán's sequence A005132.

%C The height of a term in A005132 = number of addition steps - number of subtraction steps to produce it.

%H N. J. A. Sloane, <a href="/A005132/a005132.txt">FORTRAN program for A005132, A057167, A064227, A064228</a>

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

%e A005132 begins 1, 3, 6, 2, 7, 13, 20, 12, ... and these terms have heights 1, 2, 3, 2, 3, 4, 5, 4, ...

%Y Cf. A005132, A064288, A064289, A064292, A064293, A064294.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Sep 25 2001

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Last modified November 13 10:55 EST 2018. Contains 317133 sequences. (Running on oeis4.)