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1, 2, 3, 7, 13, 17, 43, 63, 83, 167, 264, 313, 707, 836, 1667, 2236, 3114, 4472, 6833, 8167, 8937, 16667, 21886, 29614, 41833, 74833, 89437, 94863, 134164, 191833, 298327, 545793, 547613, 947617, 987917, 1643167, 3143167, 3162083, 5477133
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graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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EXAMPLE
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13^2 = 169 = A068809(5), so a(5)=13.
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MAPLE
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A007953 := proc(n) option remember: return add(d, d=convert(n, base, 10)): end: A068947 := proc(n) option remember: local k, p: if(n=1)then return 1: fi: k:=procname(n-1): p:=A007953(k^2): do k:=k+1: if(A007953(k^2)>p)then return k: fi: od: end: seq(A068947(n), n=1..20); # Nathaniel Johnston, May 04 2011
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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Francois Jooste (phukraut(AT)hotmail.com), Mar 15 2002
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STATUS
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approved
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