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Search: id:A032780
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A032780 [ n(n+1)(n+2)...(n+8) / n+(n+1)+(n+2)+...+(n+8) ]. +0
1
0, 8064, 67200, 316800, 1108800, 3203200, 8072064, 18345600, 38438400, 75398400, 140025600, 248312064, 423259200, 697132800, 1114220800, 1734163200, 2635928064, 3922512000, 5726448000, 8216208000 (list; graph; listen)
OFFSET

0,2

COMMENT

Square brackets may be omitted. There are no rational solutions here!

S(A016861) = (5n+1) gives values n so that above divisions end with digit '4'.

CROSSREFS

Cf. A032765-A032798.

Adjacent sequences: A032777 A032778 A032779 this_sequence A032781 A032782 A032783

Sequence in context: A140929 A157663 A109486 this_sequence A159224 A013378 A013458

KEYWORD

nonn

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), May 15, 1998.

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.


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