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 A073128 Integer quotients arising in A063986. 1
 0, 1, 1, 5, 5, 49, 118, 121, 2406, 2698, 4182, 4946, 153627, 3087192, 8203485, 38394376, 487844934, 2822741576, 4140154385, 4397137572, 8583966231 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 LINKS FORMULA a(n)=Sum[cototient[j], j=1..A063986(n)]/A063986(n) EXAMPLE n=15, A063986(15)=41846733, sum of first 41846733 cototients is s=343289046464505, a(15)=s/41846733. Only in knowledge of either the quotients or of partial sums of cototients is it possible to continue A063986 without recomputing previous terms! CROSSREFS Cf. A051953, A000010, A002088, A048920, A000217, A050226, A063986. Sequence in context: A178693 A065238 A196388 * A189749 A009390 A009334 Adjacent sequences:  A073125 A073126 A073127 * A073129 A073130 A073131 KEYWORD more,nonn AUTHOR Labos E. (labos(AT)ana.sote.hu), Jul 16 2002 EXTENSIONS Changed A063896 to A063986 and a(16)-a(21) from Donovan Johnson, May 11 2010 STATUS approved

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