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Search: id:A141421
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| 1, 12, 720, 60480, 3628800, 479001600, 2615348736000, 31384184832000, 32011868528640000, 51090942171709440000, 33720021833328230400000, 9306726025998591590400000, 50814724101952310083584000000
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OFFSET
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0,2
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COMMENT
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The second bisection is obtained by doubling the terms, 2*a(n).
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FORMULA
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a(n)=A091137(2n).
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MAPLE
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A091137 := proc(n) local a, p ; a := 1; p := 2: while floor(n/(p-1)) > 0 do a := a*p^(floor(n/(p-1))) ; p := nextprime(p) ; od: RETURN(a) ; end: A141421 := proc(n) A091137(2*n) ; end: for n from 0 to 20 do printf("%d, ", A141421(n)) ; od: # R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 09 2008
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CROSSREFS
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Sequence in context: A071307 A060612 A002196 this_sequence A000909 A162447 A061025
Adjacent sequences: A141418 A141419 A141420 this_sequence A141422 A141423 A141424
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KEYWORD
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nonn
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Aug 05 2008
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EXTENSIONS
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Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 09 2008
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