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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A254535 Number of length n 1..(4+2) arrays with no leading partial sum equal to a prime 1
3, 10, 40, 160, 670, 3001, 13503, 60408, 270370, 1192385, 5221700, 23404787, 108379668, 507618711, 2353392292, 10735523052, 48337299889, 216062343583, 966793284879, 4375808357962, 20209591137998, 95483805098650 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

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

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

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

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

CROSSREFS

Sequence in context: A149053 A149054 A149055 * A093639 A089005 A287887

Adjacent sequences:  A254532 A254533 A254534 * A254536 A254537 A254538

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 19 00:12 EST 2018. Contains 317332 sequences. (Running on oeis4.)