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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A254537 Number of length n 1..(6+2) arrays with no leading partial sum equal to a prime 1
4, 20, 105, 576, 3383, 20393, 121774, 709169, 4121638, 24622476, 150895459, 928855881, 5659650136, 34105862488, 205228295685, 1249619101830, 7761595614134, 48955797807546, 308737202532449, 1916725035118260 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A254539

LINKS

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

EXAMPLE

Some solutions for n=4

..4....6....8....8....8....4....6....8....1....4....4....6....6....1....1....4

..4....8....2....8....6....2....4....4....7....5....5....8....8....3....5....2

..8....7....8....2....6....4....2....6....4....6....1....1....1....6....4....4

..8....1....6....7....7....4....4....8....8....1....5....3....5....2....5....2

CROSSREFS

Sequence in context: A195256 A131786 A061709 * A135159 A190724 A243585

Adjacent sequences:  A254534 A254535 A254536 * A254538 A254539 A254540

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 16 02:33 EST 2018. Contains 317252 sequences. (Running on oeis4.)