The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A254223 Number of length 6 1..(n+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal 1
0, 2, 6, 136, 192, 1472, 3720, 11182, 16698, 44652, 58174, 129560, 207946, 379126, 471170, 858104, 1025788, 1709908, 2349342, 3507974, 4085852, 6291688, 7972036, 11313026, 14262670, 19396782, 22025082, 31062140, 34653076, 45272262, 55014664 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 6 of A254218
LINKS
EXAMPLE
Some solutions for n=4
..4....1....4....1....6....6....6....6....6....1....1....4....4....6....6....4
..5....3....6....5....2....4....3....4....2....5....3....6....2....2....3....2
..1....6....5....6....6....6....5....6....4....4....4....4....6....6....1....3
..6....2....1....4....4....5....4....4....2....2....2....6....4....1....4....6
..2....6....2....2....6....3....2....2....4....6....5....5....6....3....6....5
..6....4....6....4....4....6....4....4....6....4....1....1....4....6....4....4
CROSSREFS
Sequence in context: A359961 A274695 A156515 * A206849 A368395 A090907
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2015
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 June 13 17:32 EDT 2024. Contains 373391 sequences. (Running on oeis4.)