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A140211
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Prod(h: h=3 mod 4 and h|n).
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3
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1, 1, 3, 1, 1, 3, 7, 1, 3, 1, 11, 3, 1, 7, 45, 1, 1, 3, 19, 1, 21, 11, 23, 3, 1, 1, 81, 7, 1, 45, 31, 1, 33, 1, 245, 3, 1, 19, 117, 1, 1, 21, 43, 11, 45, 23, 47, 3, 7, 1, 153, 1, 1, 81, 605, 7, 57, 1, 59, 45, 1, 31, 1323, 1, 1, 33, 67, 1, 69, 245, 71, 3, 1, 1, 3375, 19, 77, 117, 79, 1, 81, 1
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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LINKS
| J. Mulder, Table of n, a(n) for n=1..20000
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MATHEMATICA
| ListProduct[lst_] := Fold[Times, 1, lst] lst = {}; For[n = 1, n <= 1000, n++, AppendTo[lst, ListProduct[Select[Divisors[n], Mod[ #, 4] == 3 &]]]] lst [From Jasper Mulder (jasper.mulder(AT)planet.nl), Jul 15 2009]
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CROSSREFS
| Sequence in context: A107294 A161788 A170819 * A097706 A132740 A106621
Adjacent sequences: A140208 A140209 A140210 * A140212 A140213 A140214
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KEYWORD
| nonn
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AUTHOR
| R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 27 2008
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EXTENSIONS
| More terms from Jasper Mulder (jasper.mulder(AT)planet.nl), Jul 15 2009
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