login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A254545 Number of length 7 1..(n+2) arrays with no leading partial sum equal to a prime 1
11, 329, 1466, 13503, 29038, 121774, 297210, 758766, 1313695, 3093457, 4829568, 9589613, 16150714, 27683578, 39103727, 66543164, 90003312, 142167902, 204453789, 297719303, 382646786, 565510545, 762020095, 1058506627, 1394748594 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A254539

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..4....6....4....1....4....4....6....1....6....4....6....4....4....4....4....1

..2....6....6....5....4....2....3....5....2....6....4....4....4....2....5....5

..6....2....6....6....4....2....5....2....2....2....4....1....6....6....1....3

..2....4....4....3....3....4....1....2....2....6....6....3....6....3....5....3

..1....2....5....3....1....6....3....6....6....4....6....6....5....5....3....2

..5....4....5....2....6....3....2....6....6....2....2....3....3....6....3....2

..6....2....5....6....5....3....5....4....2....4....5....5....5....2....3....2

CROSSREFS

Sequence in context: A268551 A108274 A295171 * A160293 A084944 A107441

Adjacent sequences:  A254542 A254543 A254544 * A254546 A254547 A254548

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 01 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 4 16:34 EDT 2020. Contains 336202 sequences. (Running on oeis4.)