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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 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

The condition 'at least two terms' is imposed to avoid the trivial grouping (1),(2),(3),(4),(5),...

CROSSREFS

Cf. A088099, A088101.

Sequence in context: A056225 A105437 A168140 * A097359 A079387 A141061

Adjacent sequences:  A088097 A088098 A088099 * A088101 A088102 A088103

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 24 2003

EXTENSIONS

More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 13 2003

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Last modified February 17 05:54 EST 2012. Contains 205985 sequences.