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A165385 Number of slanted nX8 (i=1..n)X(j=i..8+i-1) 1..4 arrays with all 1s connected, all 2s connected, all 3s connected, all 4s connected, 1 in the upper left corner, 2 in the upper right corner, 3 in the lower left corner, 4 in the lower right corner, and with no element having more than 3 neighbors with the same value 0
869, 59472, 927564, 9996371, 81612367, 564638514, 3445935988 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..8.

EXAMPLE

One solution for n=7

...1.1.2.2.2.2.2.2............

.....1.1.2.2.2.3.2.2..........

.......1.2.3.2.3.2.2.2........

.........3.3.2.3.2.3.3.4......

...........3.3.3.2.3.4.4.4....

.............3.3.2.3.3.3.4.4..

...............3.3.3.3.3.3.4.4

CROSSREFS

Sequence in context: A250522 A251060 A205224 * A165377 A283449 A158669

Adjacent sequences:  A165382 A165383 A165384 * A165386 A165387 A165388

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 17 2009

STATUS

approved

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Last modified January 28 23:12 EST 2022. Contains 350670 sequences. (Running on oeis4.)