id:A063651 - OEIS Search Results

Search: id:A063651

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Number of ways to tile a 7 X n rectangle with 1 X 1 and 2 X 2 tiles.

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1

1, 21, 85, 747, 4375, 31387, 202841, 1382259, 9167119, 61643709, 411595537, 2758179839, 18448963469, 123518353059, 826573277157, 5532716266089, 37028886137273, 247839719105625, 1658772577825883, 11102227136885119 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n) = 3a(n-1) + 30a(n-2) - 17a(n-3) - 138a(n-4) + 85a(n-5) + 116a(n-6) - 42a(n-7) - 32a(n-8) - Keith Schneider (kschneid(AT)bulldog.unca.edu), Apr 02 2006`
	CROSSREFS	`A001045, A054854, A054855, A063650-A063654.` `Sequence in context: A044589 A116972 A041858 this_sequence A045016 A158540 A020248` `Adjacent sequences: A063648 A063649 A063650 this_sequence A063652 A063653 A063654`
	KEYWORD	`nonn`
	AUTHOR	`Reiner Martin (reinermartin(AT)hotmail.com), Jul 23 2001`

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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.

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