A205167 - OEIS

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A205167

Number of (n+1)X6 0..3 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..3 introduced in row major order

506493, 1502057181, 4456641224469, 13223001109687815, 39233079877190973984, 116405840403665540209755, 345379963095346349517061062, 1024753727940861519383536350663, 3040478068030817268714361386677391 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Column 5 of A205170`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..210`
	FORMULA	Empirical: a(n) = 3135a(n-1) -509484a(n-2) +33380704a(n-3) -1155163860a(n-4) +23371955456a(n-5) -283352222404a(n-6) +1930114342470a(n-7) -4743702198614a(n-8) -28028680059390a(n-9) +252000315195083a(n-10) -580096388359081a(n-11) -1077099927330881a(n-12) +8177716552088449a(n-13) -13288317679713227a(n-14) -9011132978044501a(n-15) +64201793373718340a(n-16) -103107108258103398a(n-17) +83216273965787680a(n-18) -34433623699903508a(n-19) +5133203291666328a(n-20) +802120907583504a(n-21) -253519299407520a(n-22)
	EXAMPLE	`Some solutions for n=4` `..0..0..1..2..0..3....0..0..0..0..1..1....0..1..0..1..0..0....0..1..1..0..2..1` `..3..0..1..0..1..2....2..0..2..2..1..0....0..1..1..1..0..2....1..1..0..3..2..3` `..1..1..1..0..1..0....3..2..2..0..2..3....3..0..1..2..1..1....3..0..0..2..1..3` `..3..2..1..1..1..0....3..0..1..2..3..3....2..1..2..3..0..1....2..0..1..0..2..0` `..3..1..3..0..1..0....3..1..1..1..3..0....2..0..0..1..3..0....1..2..1..3..0..0`
	CROSSREFS	`Sequence in context: A203548 A195525 A124945 * A076337 A101036 A206430` `Adjacent sequences: A205164 A205165 A205166 * A205168 A205169 A205170`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Jan 22 2012`
	STATUS	`approved`

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Last modified May 20 05:35 EDT 2013. Contains 225448 sequences.