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A159195
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Let S_0 = [1]; for n>0 let S_n be obtained from S_{n-1} by applying the morphism t -> |t-1|,t,t+1; sequence gives limiting value of S_{2n+1} as n -> oo.
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0, 1, 2, 1, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 2, 1, 2, 3, 0, 1, 2, 1, 2, 3, 2, 3, 4, 1, 0, 1, 0, 1, 2, 1, 2, 3, 0, 1, 2, 1, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 2, 1, 2, 3, 0, 1, 2, 1, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 2, 1, 2, 3, 0, 1, 2, 1, 2, 3, 2, 3, 4, 1, 0, 1, 0, 1, 2, 1, 2, 3, 0, 1, 2, 1, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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EXAMPLE
| S_0 = [1]
S_1 = [0,1,2]
S_2 = [1,0,1,0,1,2,1,2,3]
S_3 = [0,1,2,1,0,1,0,1,2,1,0,1,0,1,2,1,2,3,0,1,2,1,2,3,2,3,4]
etc.
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MATHEMATICA
| Nest[ Flatten[ # /. a_Integer -> {Abs[a - 1], a, a + 1}] &, {1}, 5]
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CROSSREFS
| Sequence in context: A141095 A175599 A179759 * A099313 A097468 A098381
Adjacent sequences: A159192 A159193 A159194 * A159196 A159197 A159198
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KEYWORD
| nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 05 2009
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EXTENSIONS
| Edited by N. J. A. Sloane, Apr 07 2009
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