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A071827
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Concatenate first n terms of A007770 in reverse order.
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1
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1, 71, 1071, 131071, 19131071, 2319131071, 282319131071, 31282319131071, 3231282319131071, 443231282319131071, 49443231282319131071, 6849443231282319131071, 706849443231282319131071, 79706849443231282319131071, 8279706849443231282319131071, 868279706849443231282319131071
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OFFSET
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1,2
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REFERENCES
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Shyam Sunder Gupta, Smarandache Sequence of Happy Numbers, Smarandache Notions Journal, Vol. 13 (2002).
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LINKS
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EXAMPLE
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a(3)=1071 because 10,7,1 are consecutive terms of A007770 in reverse order.
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CROSSREFS
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KEYWORD
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easy,base,nonn,less
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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