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A138150 n-th run has length n-th prime, with digits 0 and 1 only, starting with 0. 4
0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..77.

EXAMPLE

.n ..... Run ....................... Length

.1 ..... 0,0 ....................... 2

.2 ..... 1,1,1 ..................... 3

.3 ..... 0,0,0,0,0 ................. 5

.4 ..... 1,1,1,1,1,1,1 ............. 7

.5 ..... 0,0,0,0,0,0,0,0,0,0,0 ..... 11

MATHEMATICA

With[{nn=11}, Riffle[Table[PadRight[{}, Prime[n], 0], {n, 1, nn, 2}], Table[ PadRight[ {}, Prime[n+1], 1], {n, 1, nn, 2}]]//Flatten] (* Harvey P. Dale, Nov 28 2018 *)

CROSSREFS

Cf. A000040, A057212.

Sequence in context: A180433 A165560 A014306 * A271591 A287790 A285159

Adjacent sequences:  A138147 A138148 A138149 * A138151 A138152 A138153

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol, Mar 29 2008

STATUS

approved

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Last modified May 23 11:01 EDT 2019. Contains 323513 sequences. (Running on oeis4.)