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A088100
Group the natural numbers with at least two members in each group such that the n-th group sum is a multiple of n. (1,2),(3,4,5,),(6,7,8),(9,10,11,12,13,14,15),(16,17,18,19),(20,21,22,23,24,25,26,27,28),(29,30,31,32,33,34),... Sequence contains the number of members in the n-th group.
2
2, 3, 3, 7, 4, 9, 6, 11, 8, 5, 4, 3, 12, 13, 5, 32, 17, 8, 18, 19, 6, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5, 13, 5
OFFSET
1,1
COMMENTS
The condition 'at least two terms' is imposed to avoid the trivial grouping (1),(2),(3),(4),(5),...
CROSSREFS
Sequence in context: A323952 A168140 A333699 * A097359 A358182 A208525
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Sep 24 2003
EXTENSIONS
More terms from Ray Chandler, Oct 13 2003
STATUS
approved