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A061226
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a(n) = n^2 + (n^2 with digits reversed).
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3
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0, 2, 8, 18, 77, 77, 99, 143, 110, 99, 101, 242, 585, 1130, 887, 747, 908, 1271, 747, 524, 404, 585, 968, 1454, 1251, 1151, 1352, 1656, 1271, 989, 909, 1130, 5225, 10890, 7667, 6446, 8217, 11000, 5885, 2772, 1661, 3542, 6435, 11330, 8327, 7227, 8228
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OFFSET
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0,2
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LINKS
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FORMULA
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EXAMPLE
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a(4) = 77 = 16 + 61; a(7) = 143 = 49 + 94.
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MAPLE
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R:= n-> (s-> parse(cat(s[-i]$i=1..length(s))))(""||n):
a:= n-> (s-> s+R(s))(n^2):
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MATHEMATICA
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nsr[n_]:=Module[{n2=n^2}, n2+FromDigits[Reverse[IntegerDigits[n2]]]]; Array[ nsr, 50, 0] (* Harvey P. Dale, Jul 23 2012 *)
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PROG
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(PARI) { for (n=0, 1000, x=n^2; r=0; while (x>0, d=x-10*(x\10); x\=10; r=r*10 + d); write("b061226.txt", n, " ", n^2 + r) ) } \\ Harry J. Smith, Jul 19 2009
(PARI) {a(n) = n^2+fromdigits(Vecrev(digits(n^2)))} \\ Seiichi Manyama, Sep 24 2018
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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