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A254532 Number of length n 1..(1+2) arrays with no leading partial sum equal to a prime 1
1, 1, 1, 2, 4, 6, 11, 20, 33, 62, 135, 317, 692, 1345, 2651, 5741, 12576, 25825, 49270, 90118, 168115, 340003, 751400, 1741713, 4057301, 9232683, 20184851, 42473752, 87925348, 183030469, 382853596, 790870128, 1597901060, 3189861839, 6430641490 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Column 1 of A254539

LINKS

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

EXAMPLE

All solutions for n=4

..1....1

..3....3

..2....2

..2....3

CROSSREFS

Sequence in context: A002097 A026757 A026385 * A199926 A068330 A017993

Adjacent sequences:  A254529 A254530 A254531 * A254533 A254534 A254535

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 01 2015

STATUS

approved

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Last modified November 30 19:02 EST 2021. Contains 349424 sequences. (Running on oeis4.)