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A138885 n-th run has length n-th nonprime number, with digits 0 and 1 only, starting with 1. 1
1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 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, 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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..79.

EXAMPLE

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

.1 ..... 1 ..................... 1

.2 ..... 0,0,0,0 ............... 4

.3 ..... 1,1,1,1,1,1 ........... 6

.4 ..... 0,0,0,0,0,0,0,0 ....... 8

.5 ..... 1,1,1,1,1,1,1,1,1 ..... 9

CROSSREFS

Nonprime numbers: A018252. Cf. A057211, A138149, A138150, A138709, A138710, A138711, A138712, A138886.

Sequence in context: A071005 A287801 A089510 * A185115 A240467 A014065

Adjacent sequences:  A138882 A138883 A138884 * A138886 A138887 A138888

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol, Apr 06 2008

STATUS

approved

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Last modified July 13 16:22 EDT 2020. Contains 335688 sequences. (Running on oeis4.)