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A060841
1/det(M) where M is the n X n matrix with M[i,j]= 1/lcm(i,j).
+0
1
1, 4, 18, 144, 900, 16200, 132300, 2116800, 28576800, 714420000, 8644482000, 311201352000, 4382752374000, 143169910884000, 4026653743612500, 128852919795600000, 2327405863808025000, 125679916645633350000
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.
AT&T Labs Research
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