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Search: id:A063653
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| A063653 |
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Number of ways to tile a 9 X n rectangle with 1 X 1 and 2 X 2 tiles. |
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+0
3
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| 1, 55, 341, 5933, 59925, 795611, 9167119, 113555791, 1355115601, 16484061769, 198549329897, 2403674442213, 29023432116879, 350917980468767, 4239961392742933, 51247532773412135, 619304595300705203
(list; graph; listen)
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OFFSET
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1,2
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FORMULA
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a(n) = 6a(n-1) + 110a(n-1) - 262a(n-1) - 2786a(n-1) + 5916a(n-1) + 25168a(n-1) - 53907a(n-1) - 95299a(n-1) + 197820a(n-1) + 193866a(n-1) - 340168a(n-1) - 228528a(n-1) + 279636a(n-1) + 137864a(n-1) - 108909a(n-1) - 33736a(n-1) + 20214a(n-1) + 2460a(n-1) - 1296a(n-1) - Keith Schneider (kschneid(AT)bulldog.unca.edu), Apr 02 2006
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CROSSREFS
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A001045, A054854, A054855, A063650-A063654.
Adjacent sequences: A063650 A063651 A063652 this_sequence A063654 A063655 A063656
Sequence in context: A020182 A140197 A020280 this_sequence A075740 A129217 A116060
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KEYWORD
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nonn
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AUTHOR
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Reiner Martin (reinermartin(AT)hotmail.com), Jul 23 2001
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