A254197 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A254197

Number of length n 1..(1+2) arrays with no leading or trailing partial sum equal to a prime

1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 2, 14, 66, 156, 202, 151, 69, 18, 7, 19, 37, 78, 393, 2608, 12865, 45917, 121659, 245151, 393062, 565673, 910088, 1775336, 3503048, 5974259, 8372896, 9844151, 11328144, 18364097, 44444934, 112695335, 249504498

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,14

COMMENTS

Column 1 of A254204

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..66

EXAMPLE

All solutions for n=15

..1....1....1....1....1....1....1....1....1....1....1....1....1....1

..3....3....3....3....3....3....3....3....3....3....3....3....3....3

..2....2....2....2....2....2....2....2....2....2....2....2....2....2

..3....2....3....3....3....3....3....3....3....3....2....3....3....3

..3....2....3....1....3....3....3....3....3....3....1....3....3....3

..3....2....3....2....3....3....2....3....3....2....3....3....3....2

..1....3....3....3....3....3....1....3....3....2....3....3....3....2

..2....3....3....3....3....2....3....3....2....2....3....3....3....2

..3....3....3....3....3....1....3....3....2....3....3....1....3....2

..3....3....2....3....3....3....3....2....2....3....3....2....3....2

..3....3....1....3....3....3....3....2....3....3....3....3....1....3

..3....3....3....3....3....3....3....2....3....3....3....3....2....3

..2....2....2....2....2....2....2....2....2....2....2....2....2....2

..3....3....3....3....3....3....3....3....3....3....3....3....3....3

..1....1....1....1....1....1....1....1....1....1....1....1....1....1

CROSSREFS

Sequence in context: A335630 A266590 A196977 * A222715 A197162 A109869

Adjacent sequences: A254194 A254195 A254196 * A254198 A254199 A254200

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 26 2015

STATUS

approved