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A079827
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a(n) = floor((n + reverse(n))/2).
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2
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1, 2, 3, 4, 5, 6, 7, 8, 9, 5, 11, 16, 22, 27, 33, 38, 44, 49, 55, 11, 16, 22, 27, 33, 38, 44, 49, 55, 60, 16, 22, 27, 33, 38, 44, 49, 55, 60, 66, 22, 27, 33, 38, 44, 49, 55, 60, 66, 71, 27, 33, 38, 44, 49, 55, 60, 66, 71, 77, 33, 38, 44, 49, 55, 60, 66, 71, 77, 82, 38, 44, 49, 55
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OFFSET
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1,2
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LINKS
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MAPLE
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R:=proc(n) local nn, nnn: nn:=convert(n, base, 10): add(nn[nops(nn)+1-j]*10^(j-1), j=1..nops(nn)) end: a:=n->floor(n/2+R(n)/2): seq(a(n), n=1..85); # R is the Maple program that yields the digit reversal of n. # Emeric Deutsch, Aug 06 2005
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MATHEMATICA
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Do[Print[Floor[(n + FromDigits[Reverse[IntegerDigits[n]]]) / 2]], {n, 1, 50}] (* Ryan Propper, Jul 20 2005 *)
Array[Floor[(#+IntegerReverse[#])/2]&, 80] (* Harvey P. Dale, Aug 27 2022 *)
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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