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Search: id:A069008
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| A069008 |
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Let M denote the 6X6 matrix with rows /1,1,1,1,1,1/1,1,1,1,1,0/1,1,1,1,0,0/1,1,1,0,0,0/1,1,0,0,0,0/1,0,0,0,0,0/ and A(n) the vector (x(n),y(n),z(n),t(n),u(n),v(n)) = M^n*A where A is the vector (1,1,1,1,1,1); then a(n) = z(n). |
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+0
5
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| 1, 4, 18, 74, 309, 1280, 5313, 22035, 91410, 379171, 1572857, 6524375, 27063881, 112264055, 465684247, 1931711700, 8012962189, 33238687760, 137877896315, 571933356551, 2372445281505, 9841175633650, 40822327332150
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OFFSET
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0,2
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CROSSREFS
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Cf. A006359, A069007, A069008, A069009, A070778, A006359 (offset), for x(n), y(n), z(n), t(n), u(n), v(n).
Adjacent sequences: A069005 A069006 A069007 this_sequence A069009 A069010 A069011
Sequence in context: A037497 A075675 A047034 this_sequence A026560 A037674 A066259
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KEYWORD
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easy,nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 02 2002
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EXTENSIONS
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Edited by Henry Bottomley (se16(AT)btinternet.com), May 06 2002.
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