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Search: id:A139192
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| A139192 |
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Natural numbers of the form (prime(n)!-4)/4 . |
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+0
19
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| 29, 1259, 9979199, 1556755199, 88921857023999, 30411275102207999, 6463004184721244159999, 2210440498434925488635903999999, 2055709663544480704431390719999999, 3440938272806586261578994895395225599999999, 8363131653290951777042515513360187916287999999999, 15103815765843458909338783017128499376816127999999999, 64655810377792045160741088788402994992299408097279999999999, 1068720821015006391074503438347349912422585947091703431167999999999999
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OFFSET
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1,1
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FORMULA
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a(n)=(A139189(n+2)-3)/4. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 25 2008
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MATHEMATICA
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Table[(Prime[n]! - 4)/4, {n, 3, 20}]
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CROSSREFS
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Cf. A139189, A139190, A139191, A139192, A139193, A139194, A139195, A139196, A139197, A139198.
Sequence in context: A138660 A025761 A003735 this_sequence A049657 A091994 A126555
Adjacent sequences: A139189 A139190 A139191 this_sequence A139193 A139194 A139195
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KEYWORD
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hard,nonn
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Apr 11 2008
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 25 2008
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