login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A254209 Number of length 6 1..(n+2) arrays with no leading or trailing partial sum equal to a prime 1
0, 27, 47, 610, 769, 4353, 9126, 25389, 33798, 85437, 105502, 224414, 342993, 608338, 731220, 1297874, 1513366, 2471660, 3316174, 4892872, 5594456, 8495902, 10580268, 14864909, 18500679, 24975320, 28034979, 39173178, 43315043, 56273764, 67819100 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A254204

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..124

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

CROSSREFS

Sequence in context: A059658 A241407 A153260 * A155137 A155138 A031325

Adjacent sequences:  A254206 A254207 A254208 * A254210 A254211 A254212

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 20 17:51 EDT 2019. Contains 324234 sequences. (Running on oeis4.)