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A068522
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In base 10 notation replace digits of n with their squared values (Version 2).
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2
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0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 10, 11, 14, 19, 26, 35, 46, 59, 74, 91, 40, 41, 44, 49, 56, 65, 76, 89, 104, 121, 90, 91, 94, 99, 106, 115, 126, 139, 154, 171, 160, 161, 164, 169, 176, 185, 196, 209, 224, 241, 250, 251, 254, 259
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OFFSET
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0,3
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LINKS
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FORMULA
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a(n) = Sum_{i=0..g} d(i)*d(i)*10^i, where n = Sum_{d=0..9} d(i)*10^i is the decimal expansion of n.
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EXAMPLE
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a(13) = a(1*10^1 + 3*10^0) = 1^2*10^1 + 3^2*10^0 = 10 + 9 = 19.
a(14) = a(1*10^1 + 4*10^0) = 1^2*10^1 + 4^2*10^0 = 10 + 16 = 26.
a(48) = a(4*10^1 + 8*10^0) = 4^2*10^1 + 8^2*10^0 = 160 + 64 = 224.
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MAPLE
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a:= n-> (s-> add(parse(s[-i])^2*10^(i-1), i=1..length(s)))(""||n):
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MATHEMATICA
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PROG
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(Haskell)
a068522 0 = 0
a068522 n = 10 * a068522 n' + m ^ 2 where (n', m) = divMod n 10
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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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STATUS
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approved
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