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Search: id:A127861
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| A127861 |
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a(n)=A127859(n)^2 where A127859(n)=r(A127858(n)) and A127858 is the sequence of positive integers with the property that r(n^2)=r(n)^2, where r if the cyclic replacement map of the digits d of n in base 12 defined by d->d+1 if d<11 and d->0 if d=11. |
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6
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| 49, 6241, 889249, 127938721, 18421818529, 2652725580961, 381992288212129, 55006887157191841, 7920991722491368609, 1140622807701026002081
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OFFSET
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1,1
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COMMENT
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In base 12 the sequence is 41, 3741, 36X741, 36X1X741, 36X151X741, 36X14851X741, 36X147E851X741, 36X147E2E851X741, 36X147E262E851X741, 36X147E25962E851X741, where X is 10 and E is 11.
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EXAMPLE
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a(1)=A127859(1)^2=7^2=49.
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CROSSREFS
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Cf. A117755, A127856, A127857, A127858, A127859, A127860.
Sequence in context: A129207 A053772 A075416 this_sequence A130416 A006692 A014801
Adjacent sequences: A127858 A127859 A127860 this_sequence A127862 A127863 A127864
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KEYWORD
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fini,nonn,base
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AUTHOR
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Walter A. Kehowski (wkehowski(AT)cox.net), Feb 04 2007
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