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Search: id:A084009
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| A084009 |
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a(n) = n^2 concatenated with Reverse (n^2)) divided by 11. |
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+0
2
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| 0, 1, 4, 9, 151, 232, 333, 454, 586, 738, 9091, 11011, 13131, 15451, 17881, 20502, 23332, 26362, 29493, 32833, 36364, 40104, 44044, 48175, 52425, 56866, 61516, 66357, 71317, 76468, 81819, 87379, 931291, 990891, 1051501, 1114111, 1178811
(list; graph; listen)
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OFFSET
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0,3
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EXAMPLE
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a(12) = 144441/11 =13131.
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MAPLE
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a:=proc(n) local nn, s: nn:=convert(n^2, base, 10): s:=nops(nn): (10^s*n^2+add(nn[1+s-j]*10^(j-1), j=1..s))/11 end: seq(a(n), n=0..39); (Deutsch)
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CROSSREFS
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Cf. A084008, A084010.
Adjacent sequences: A084006 A084007 A084008 this_sequence A084010 A084011 A084012
Sequence in context: A061267 A061269 A061271 this_sequence A029738 A067072 A080438
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.comandmenakan_s(AT)yahoo.com), May 23 2003
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EXTENSIONS
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More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Feb 25 2005
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