Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A141864
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A141864 Number of nonprimes in A038511 in intervals 3*5*7, where A038511(0)=1(nonprime). +0
1
1, 5, 5, 8, 6, 9, 8, 8, 10, 8, 9, 10, 10, 10, 8, 9, 11, 10, 13, 8, 13, 9, 9, 14, 11, 7, 11, 11, 12, 14, 11, 10, 12, 10, 10, 11, 12, 12, 10, 14, 8, 14, 12, 13, 10, 12, 14, 8, 14, 12, 13, 11, 11, 11, 14, 7, 16, 12, 14, 9, 9, 16, 12, 11, 14, 11, 10, 14, 12, 14, 17, 8, 12, 10, 15, 12, 15, 12 (list; graph; listen)
OFFSET

1,2

EXAMPLE

In 1-th interval: if A038511(0)=1, then a(1)=1.

In 2-th interval: if A038511(1)=121, A038511(2)=143, A038511(3)=169,

A038511(4)=187 and A038511(5)=209, then a(2)=5.

In 3-th interval: if A038511(6)=221, A038511(7)=247, A038511(8)=253,

A038511(9)=289 and A038511(10)=299, then a(3)=5.

In 4-th interval: if A038511(11)=319, A038511(12)=323, A038511(13)=341,

A038511(14)=361, A038511(15)=377, A038511(16)=391 and A038511(17)=403

and A038511(18)=407, then a(4)=8, etc.

CROSSREFS

Cf. A002808, A141468, A038511.

KEYWORD

nonn,uned,new

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler,ru), Sep 15 2008

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified October 5 16:50 EDT 2008. Contains 144613 sequences.


AT&T Labs Research