id:A165383 - OEIS Search Results

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Number of slanted nX6 (i=1..n)X(j=i..6+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

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241, 5472, 37784, 174197, 598332, 1700146, 4185118, 9267244, 18840617, 35800784, 64279915, 110110272, 181122449, 287758922, 443428845, 665278308, 974595065, 1397742124 (list; graph; listen)

	OFFSET	`2,1`
	EXAMPLE	`One solution for n=16` `...1.1.2.2.2.2..............................` `.....1.1.2.2.2.2............................` `.......1.1.1.1.2.2..........................` `.........1.1.2.2.2.2........................` `...........1.1.1.1.2.2......................` `.............1.2.1.1.2.2....................` `...............2.2.2.2.3.3..................` `.................2.2.2.2.3.3................` `...................3.3.2.3.3.3..............` `.....................3.3.3.4.4.4............` `.......................3.3.4.4.4.4..........` `.........................3.3.3.3.4.4........` `...........................3.3.4.4.4.4......` `.............................3.3.3.3.4.4....` `...............................3.3.4.4.4.4..` `.................................3.3.3.3.4.4`
	CROSSREFS	`Sequence in context: A167739 A119596 A046948 this_sequence A006687 A060893 A165375` `Adjacent sequences: A165380 A165381 A165382 this_sequence A165384 A165385 A165386`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Sep 17 2009`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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