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A138712 n-th run has length n-th positive triangular number, with digits 0 and 1 only, starting with 0. 2
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..84.

EXAMPLE

.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

CROSSREFS

Cf. A000217, A057212, A138150, A138710.

Sequence in context: A105565 A068717 A049240 * A029693 A051067 A190897

Adjacent sequences:  A138709 A138710 A138711 * A138713 A138714 A138715

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol, Mar 29 2008

STATUS

approved

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Last modified March 25 13:39 EDT 2017. Contains 284081 sequences.