login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A186992 Number of subsets of {1, 2, ..., n} containing n and having <=8 pairwise coprime elements. 4
1, 2, 4, 4, 12, 4, 28, 16, 32, 12, 116, 16, 248, 48, 72, 112, 728, 64, 1512, 192, 384, 256, 3783, 255, 3086, 732, 2674, 826, 14164, 255, 25999, 6275, 5769, 3785, 8818, 1681, 67036, 7984, 13643, 4910, 133296, 2664, 218406, 24268, 26254 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
CROSSREFS
Column 8 of triangle A186975. Sum of A186991 and A186979.
Sequence in context: A186989 A186990 A186991 * A186993 A186973 A225232
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Mar 03 2011
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 29 09:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)