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A064290 First number of height n in Recamán's sequence A005132. 11
1, 3, 6, 13, 20, 43, 62, 113, 224, 367, 494, 833, 1815, 3379, 5551, 9169, 17864, 32978, 58964, 106218, 131313, 155719, 180118, 591890, 881467, 1345004, 3012446, 5728819, 9309579, 17512700, 25641318, 52978675, 61998980, 125130665, 244636214, 280766754, 566273517, 1031389697, 2182394227, 3045423658, 3454917187 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

LINKS

Table of n, a(n) for n=1..41.

N. J. A. Sloane, FORTRAN program for A005132, A057167, A064227, A064228

Index entries for sequences related to Recamán's sequence

EXAMPLE

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

CROSSREFS

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

Sequence in context: A230370 A285246 A147009 * A064621 A194279 A180750

Adjacent sequences:  A064287 A064288 A064289 * A064291 A064292 A064293

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Sep 25 2001

STATUS

approved

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Last modified September 23 13:55 EDT 2017. Contains 292358 sequences.