A138886 n-th run has length n-th nonprime number A018252, with digits 0 and 1 only, starting with 0.

0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 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, 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

Offset

1,1

Comments

Also the n-th run has length A141468, with digits 0 and 1 only, starting with 1.

Links

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

Example

.n ..... Run ................... Length
.1 ..... 0 ..................... 1
.2 ..... 1,1,1,1 ............... 4
.3 ..... 0,0,0,0,0,0 ........... 6
.4 ..... 1,1,1,1,1,1,1,1 ....... 8
.5 ..... 0,0,0,0,0,0,0,0,0 ..... 9

Crossrefs

Cf. A057211, A138149, A138150, A138709, A138710, A138711, A138712, A138885.

Sequence in context: A323377 A068344 A161382 * A269528 A099859 A176416

Adjacent sequences: A138883 A138884 A138885 * A138887 A138888 A138889

Keyword

easy,nonn

Author

Omar E. Pol, Apr 06 2008

Status

approved