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

 

Logo

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 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A254539 T(n,k)=Number of length n 1..(k+2) arrays with no leading partial sum equal to a prime 14
1, 2, 1, 2, 3, 1, 3, 5, 8, 2, 3, 10, 15, 20, 4, 4, 11, 40, 45, 50, 6, 5, 20, 49, 160, 135, 126, 11, 6, 28, 105, 222, 670, 421, 329, 20, 6, 37, 163, 576, 1087, 3001, 1466, 956, 33, 7, 41, 253, 1026, 3383, 5604, 13503, 5403, 2897, 62, 7, 54, 307, 1849, 6814, 20393, 29038, 60408 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

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

..1....3.....5......10......11.......20.......28........37........41.........54

..1....8....15......40......49......105......163.......253.......307........466

..2...20....45.....160.....222......576.....1026......1849......2461.......4195

..4...50...135.....670....1087.....3383.....6814.....13843.....20012......37643

..6..126...421....3001....5604....20393....45472....102595....161277.....338402

.11..329..1466...13503...29038...121774...297210....758766...1313695....3093457

.20..956..5403...60408..150268...709169..1936867...5719495..10916298...28507728

.33.2897.19417..270370..764508..4121638.12941917..43758333..91142820..262001403

.62.8341.69205.1192385.3857845.24622476.88456127.333905794.755234611.2410105286

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..9999

EXAMPLE

Some solutions for n=4 k=4

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

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

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

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

CROSSREFS

Row 1 is A062298(n+2)

Sequence in context: A293003 A110062 A144215 * A283827 A122087 A139642

Adjacent sequences: A254536 A254537 A254538 * A254540 A254541 A254542

KEYWORD

nonn,tabl

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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 27 19:48 EST 2022. Contains 358406 sequences. (Running on oeis4.)