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A008343 a(n+1) = a(n)-n if a(n) >= n else a(n)+n. 2
1, 0, 2, 5, 1, 6, 0, 7, 15, 6, 16, 5, 17, 4, 18, 3, 19, 2, 20, 1, 21, 0, 22, 45, 21, 46, 20, 47, 19, 48, 18, 49, 17, 50, 16, 51, 15, 52, 14, 53, 13, 54, 12, 55, 11, 56, 10, 57, 9, 58, 8, 59, 7, 60, 6, 61, 5, 62, 4, 63, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

T. D. Noe, Table of n, a(n) for n=1..1000

MAPLE

A008343 := proc(n) option remember; if n = 1 then 1 elif A008343(n-1) >= (n-1) then A008343(n-1)-(n-1) else A008343(n-1)+(n-1); fi; end;

CROSSREFS

Sequence in context: A021803 A077382 A046527 * A093952 A079614 A084245

Adjacent sequences:  A008340 A008341 A008342 * A008344 A008345 A008346

KEYWORD

nonn

AUTHOR

N. J. A. Sloane and J. H. Conway (conway(AT)math.princeton.edu)

STATUS

approved

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Last modified May 22 14:32 EDT 2013. Contains 225552 sequences.