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A109072
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Number of decimal digits ( counted with multiplicity ) in n but not in n^2.
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1
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0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 2, 1, 2, 0, 1, 0, 1, 2, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 0, 1, 1, 2, 2, 0, 1, 2, 2, 2, 0, 1, 2, 0, 0, 1, 0, 2, 1, 1, 1, 1, 2, 1, 0, 1, 0, 2, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,18
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COMMENTS
| Cf. A076493 Number of common and distinct decimal digits of n and n^2, A109071 Number of common decimal digits ( counted with multiplicity ) of n and n^2.
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MATHEMATICA
| UnsortedComplement[x_List, y__List]:=Replace[x, Dispatch[(#\[RuleDelayed]Sequence[])&/@Union[y]], 1]; Table[Length[UnsortedComplement[IntegerDigits[n], IntegerDigits[n^2]]], {n, 0, 200}]
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CROSSREFS
| Cf. A076493, A109071.
Sequence in context: A156054 A030616 A202084 * A100727 A064892 A083019
Adjacent sequences: A109069 A109070 A109071 * A109073 A109074 A109075
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KEYWORD
| base,easy,nonn
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Jun 20 2005
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