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Search: id:A080811
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| A080811 |
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a(1) = 8, a(n)= smallest n-th power obtained by inserting digits anywhere in a(n-1). |
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+0
6
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OFFSET
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1,1
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MAPLE
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buffedStr := proc(n, candid) local f ; if length(n) = 0 then RETURN(true) ; fi ; f := SearchText(substring(n, 1), candid) ; if f = 0 then RETURN(false) ; else if buffedStr(substring(n, 2..-1), substring(candid, f+1..-1)) = true then RETURN(true) ; else RETURN(false) ; fi ; fi ; end: A080811 := proc(preva, n) local i, tst ; i := 1 ; while true do tst := i^n ; if buffedStr(convert(preva, string), convert(tst, string)) = true then RETURN(tst) ; fi ; i := i+1 ; od: end: an :=8 ; for n from 2 to 15 do an := A080811(an, n) ; end ; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 20 2006
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CROSSREFS
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Cf. A080804, A080805, A080806, A080807, A080808, A080809, A080810, A080812.
Sequence in context: A022504 A104126 A100879 this_sequence A073699 A068173 A069635
Adjacent sequences: A080808 A080809 A080810 this_sequence A080812 A080813 A080814
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KEYWORD
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base,more,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 22 2003
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EXTENSIONS
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2 more terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 20 2006
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