The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A254534 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A254534

Number of length n 1..(3+2) arrays with no leading partial sum equal to a prime
(history; published version)

#4 by R. H. Hardin at Sun Feb 01 09:36:09 EST 2015

STATUS

editing

approved

#3 by R. H. Hardin at Sun Feb 01 09:36:06 EST 2015

LINKS

R. H. Hardin, <a href="/A254534/b254534.txt">Table of n, a(n) for n = 1..210</a>

#2 by R. H. Hardin at Sun Feb 01 09:35:51 EST 2015

NAME

allocated for R. H. Hardin

Number of length n 1..(3+2) arrays with no leading partial sum equal to a prime

DATA

2, 5, 15, 45, 135, 421, 1466, 5403, 19417, 69205, 249569, 883285, 3024282, 10359274, 37010151, 138333876, 524680726, 1964881580, 7214899381, 26104002605, 93449335588, 331875353107, 1177784053061, 4229817098432, 15554800422055

OFFSET

1,1

COMMENTS

Column 3 of A254539

EXAMPLE

Some solutions for n=4

..1....4....4....4....4....1....4....1....4....4....1....1....1....4....1....4

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

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

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

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, Feb 01 2015

STATUS

approved

editing

#1 by R. H. Hardin at Sun Feb 01 09:30:07 EST 2015

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved