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Search: id:A081108
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| A081108 |
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8th binomial transform of (1,1,0,0,0,0,.........). |
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+0
5
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| 1, 9, 80, 704, 6144, 53248, 458752, 3932160, 33554432, 285212672, 2415919104, 20401094656, 171798691840, 1443109011456, 12094627905536, 101155069755392, 844424930131968, 7036874417766400, 58546795155816448, 486388759756013568
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Main diagonal of array defined by m(0,j)=j; m(i,0)=i and m(i,j)=m(i-1,j)+7*m(i-1,j-1) - Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 13 2003
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FORMULA
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a(n)=16*a(n-1)-64*a(n-2), a(0)=1, a(1)=9. a(n)=(n+8)*8^(n-1) G.f.: (1-7x)/(1-8x)^2
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CROSSREFS
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Cf. A081107, A081109.
Cf. A006234.
Sequence in context: A125421 A163445 A083411 this_sequence A018913 A127265 A055070
Adjacent sequences: A081105 A081106 A081107 this_sequence A081109 A081110 A081111
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KEYWORD
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easy,nonn
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Mar 07 2003
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