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A254200 Number of length n 1..(4+2) arrays with no leading or trailing partial sum equal to a prime 1
3, 4, 17, 54, 176, 610, 2197, 8358, 34005, 132483, 481155, 1740425, 6687987, 27786351, 119771265, 505378180, 2029295253, 7853415177, 30644058184, 126228069143, 551346605310, 2456789154285, 10682911165060, 44206259595121 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A254204

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..25

EXAMPLE

Some solutions for n=4

..6....4....6....6....4....6....4....4....6....4....4....4....6....6....4....6

..6....6....6....6....4....6....2....4....4....2....2....2....4....4....6....6

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

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

CROSSREFS

Sequence in context: A187995 A296277 A303480 * A009208 A296283 A051473

Adjacent sequences:  A254197 A254198 A254199 * A254201 A254202 A254203

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 26 2015

STATUS

approved

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Last modified May 12 02:06 EDT 2021. Contains 343808 sequences. (Running on oeis4.)