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A138712
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n-th run has length n-th positive triangular number, with digits 0 and 1 only, starting with 0.
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2
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0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..84.
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EXAMPLE
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.n ..... Run ............................... Length
.1 ..... 0 ................................. 1
.2 ..... 1,1,1 ............................. 3
.3 ..... 0,0,0,0,0,0........................ 6
.4 ..... 1,1,1,1,1,1,1,1,1,1 ............... 10
.5 ..... 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 ..... 15
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CROSSREFS
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Cf. A000217, A057212, A138150, A138710.
Sequence in context: A068717 A049240 A285978 * A029693 A200263 A051067
Adjacent sequences: A138709 A138710 A138711 * A138713 A138714 A138715
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KEYWORD
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easy,nonn
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AUTHOR
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Omar E. Pol, Mar 29 2008
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STATUS
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approved
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