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A047197 Number of nonempty subsets of {1,2,...,n} in which exactly 3/4 of the elements are <= n/3. 0
0, 0, 0, 0, 0, 0, 0, 0, 6, 7, 8, 32, 36, 40, 100, 110, 120, 306, 338, 371, 1127, 1260, 1400, 4256, 4760, 5292, 15180, 16929, 18780, 53700, 59920, 66550, 195052, 218086, 242792, 716210, 801350, 892970, 2618486, 2929563, 3265171 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,9
LINKS
CROSSREFS
Sequence in context: A347808 A048018 A254714 * A048079 A011346 A155525
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified May 21 08:56 EDT 2024. Contains 372733 sequences. (Running on oeis4.)