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Search: id:A138711
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| A138711 |
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n-th run has length n-th positive triangular number, with digits 0 and 1 only, starting with 1. |
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+0
3
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| 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 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, 0, 0, 0, 0, 0, 0, 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, 1, 1, 1, 1, 1, 1, 1
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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.n ..... Run ............................... Length
.1 ..... 1 ................................. 1
.2 ..... 0,0,0 ............................. 3
.3 ..... 1,1,1,1,1,1........................ 6
.4 ..... 0,0,0,0,0,0,0,0,0,0 ............... 10
.5 ..... 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 ..... 15
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CROSSREFS
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Cf. A000217, A057211, A138149, A138709.
Sequence in context: A104107 A120532 A004555 this_sequence A154281 A154282 A014702
Adjacent sequences: A138708 A138709 A138710 this_sequence A138712 A138713 A138714
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KEYWORD
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easy,nonn
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), Mar 29 2008
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