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A255719 Number of length 4 1..(n+2) arrays with no leading partial sum equal to a prime and no consecutive values equal 1
1, 6, 21, 81, 120, 342, 653, 1221, 1729, 3037, 3884, 6136, 8650, 12056, 14580, 20505, 24083, 32191, 40684, 51184, 58455, 74807, 90133, 110175, 130476, 155925, 173529, 209720, 230413, 269673, 310187, 358492, 408861, 473591, 512204, 582744, 654517 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 4 of A255716

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A255716

Sequence in context: A192144 A026628 A053768 * A134927 A108306 A199115

Adjacent sequences:  A255716 A255717 A255718 * A255720 A255721 A255722

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 03 2015

STATUS

approved

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Last modified August 22 03:07 EDT 2017. Contains 290942 sequences.