A206251 - OEIS

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A206251

Number of (n+1)X5 0..3 arrays with every 2X2 subblock having zero permanent

9409, 1718209, 49336576, 4556324929, 226637884225, 16533087493120, 1006239668280961, 68438717405988481, 4427204221759169536, 295306870252087238017, 19431114832514090805121, 1289257317404589497597440 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Column 4 of A206255`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..210`
	FORMULA	`Empirical: a(n) = 88a(n-1) -128439a(n-3) +1879848a(n-4) +28773144a(n-5) -593002863a(n-6) +32230833768a(n-8) -98419153113*a(n-9)`
	EXAMPLE	`Some solutions for n=4` `..3..3..2..3..0....3..1..1..2..0....0..1..0..2..3....2..1..3..3..1` `..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0` `..3..0..0..0..3....1..2..1..1..3....0..0..3..2..3....0..1..0..2..2` `..2..0..2..0..3....0..0..0..0..0....1..0..0..0..0....0..1..0..0..0` `..3..0..3..0..0....2..1..1..2..1....0..0..0..1..1....0..1..0..1..3`
	CROSSREFS	`Sequence in context: A173194 A239609 A231763 * A264340 A031595 A031775` `Adjacent sequences: A206248 A206249 A206250 * A206252 A206253 A206254`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Feb 05 2012`
	STATUS	`approved`

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Last modified March 30 19:10 EDT 2023. Contains 361622 sequences. (Running on oeis4.)