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Search: id:A140893
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| A140893 |
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a(n) = prime(n)^prime(n+1)-prime(n+1)^prime(n). |
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+0
2
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| -1, 118, 61318, 1957839572, 32730551749894, 8640511341348431996, 233592048827366522661214, 257755012474380136537664158772, 3091054326372819773383775097721670599074
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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If n=1, then a(1)=prime(1)^prime(1+1) - prime(1+1)^prime(1)=2^3-3^2=8-9=-1
If n=3, then a(3)=prime(3)^prime(4) - prime(4)^prime(3)=5^7-7^5=78125-16807= 61318
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MATHEMATICA
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Array[Prime[ # ]^Prime[ #+1]-Prime[ #+1]^Prime[ # ]&, 16] # Vladimir Orlovsky, Oct 11 2009
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CROSSREFS
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Cf. A000040, A007965, A143776.
Sequence in context: A062500 A007965 A013470 this_sequence A143776 A013476 A013683
Adjacent sequences: A140890 A140891 A140892 this_sequence A140894 A140895 A140896
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KEYWORD
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sign
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AUTHOR
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Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jul 07 2008
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EXTENSIONS
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Corrected and extended by Vladimir Orlovsky (4vladimir(AT)gmail.com), Oct 11 2009
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