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A068075
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Lesser of a primitive pair such that n and its 10's complement are simultaneously square.
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1
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OFFSET
| 1,2
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COMMENTS
| If k is in the sequence so is k * 100^m.
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MATHEMATICA
| Do[ If[n^2 <= 5*10^Floor[ Log[10, n^2]] && IntegerQ[ Sqrt[ 10^Floor[ Log[10, n^2] + 1] - n^2]] && Take[ IntegerDigits[n^2], -1] != {0}, Print[n^2]], {n, 1, 4*10^6}]
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CROSSREFS
| Cf. A068810.
Sequence in context: A017594 A014800 A067473 * A053136 A000821 A203282
Adjacent sequences: A068072 A068073 A068074 * A068076 A068077 A068078
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KEYWORD
| base,nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Mar 20 2002
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