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A219776 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 5Xn array 1
6, 10, 56, 283, 1229, 4837, 17259, 57116, 176642, 515209, 1431352, 3813222, 9775422, 24160092, 57653822, 133042327, 297375601, 644960872, 1359688507, 2791062631, 5587702747, 10926837537, 20901070563, 39158211715, 71941484958, 129753179631 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A219773

LINKS

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

FORMULA

Empirical: a(n) = (1/22230464256000)*n^17 + (1/1307674368000)*n^16 - (1/16144128000)*n^15 + (983/261534873600)*n^14 - (497/8895744000)*n^13 - (9503/14370048000)*n^12 + (9180461/100590336000)*n^11 - (6185839/1828915200)*n^10 + (37785191/508032000)*n^9 - (242129257/285768000)*n^8 - (416078947/171072000)*n^7 + (16333341953/57480192)*n^6 - (1793379350418457/326918592000)*n^5 + (3162447498534721/54486432000)*n^4 - (3078524236602851/9081072000)*n^3 + (103486486753073/151351200)*n^2 + (419755260373/145860)*n - 13291737 for n>19

EXAMPLE

Some solutions for n=3

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..0..1....0..0..1

..0..0..0....0..0..1....0..0..1....0..0..0....1..1..1....0..0..0....0..0..1

..0..0..0....1..0..0....1..1..1....0..0..0....1..1..1....0..0..0....0..0..1

..0..0..0....1..0..0....1..1..1....0..0..0....1..1..1....0..0..0....0..0..0

..0..0..0....1..0..0....1..1..1....1..0..0....1..1..1....0..0..0....0..0..0

CROSSREFS

Sequence in context: A115741 A177168 A136843 * A136848 A136849 A136847

Adjacent sequences:  A219773 A219774 A219775 * A219777 A219778 A219779

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 27 2012

STATUS

approved

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Last modified July 1 06:11 EDT 2022. Contains 354952 sequences. (Running on oeis4.)