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Search: id:A053540
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| 1, 18, 243, 2916, 32805, 354294, 3720087, 38263752, 387420489, 3874204890, 38354628411, 376572715308, 3671583974253, 35586121596606, 343151886824415, 3294258113514384, 31501343210481297, 300189270593998242, 2851798070642983299, 27017034353459841780
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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With a different offset, number of n-permutations of 10 objects: p, q, r, s, u, v, w, z, x, y with repetition allowed, containing exactly one u. - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Dec 28 2007
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LINKS
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F. Ellermann, Illustration of binomial transforms
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MAPLE
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seq(seq(binomial(i, j)*9^(i-1), j =i-1), i=1..20); # - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Dec 28 2007
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PROGRAM
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(Other) SAGE: [lucas_number2(n, 9, 0)*binomial(n, 1)/9for n in xrange(1, 21)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 12 2009]
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CROSSREFS
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Related to computing A023052.
Cf. A001787, A053464 and A053469.
Sequence in context: A016247 A021064 A080629 this_sequence A080601 A016186 A081203
Adjacent sequences: A053537 A053538 A053539 this_sequence A053541 A053542 A053543
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KEYWORD
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nonn
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AUTHOR
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Barry E. Williams, Jan 15 2000
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org), May 29 2001
Edited by N. J. A. Sloane (njas(AT)research.att.com) at the suggestion of Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 16 2007
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