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A254203 Number of length n 1..(7+2) arrays with no leading or trailing partial sum equal to a prime 0
5, 16, 68, 315, 1653, 9126, 50166, 266060, 1445197, 8388620, 49943639, 291356973, 1672450652, 9817427902, 60070829938, 373040809711, 2261787393319 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A254204

LINKS

Table of n, a(n) for n=1..17.

EXAMPLE

Some solutions for n=4

..8....9....6....4....6....9....8....9....4....4....1....4....9....8....4....8

..7....7....2....2....4....9....6....9....8....2....8....8....7....4....6....4

..6....5....7....3....6....7....4....9....8....2....9....9....6....6....4....6

..9....9....9....1....6....9....8....9....8....8....9....1....8....4....4....6

CROSSREFS

Sequence in context: A323934 A166932 A027105 * A220903 A042087 A151465

Adjacent sequences:  A254200 A254201 A254202 * A254204 A254205 A254206

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 26 2015

STATUS

approved

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Last modified November 12 13:43 EST 2019. Contains 329058 sequences. (Running on oeis4.)