A048024 Number of nonempty subsets of {1,2,...,n} in which exactly 4/5 of the elements are <= (n-2)/3.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 60, 65, 70, 210, 225, 240, 560, 595, 630, 1413, 1501, 1590, 4230, 4536, 4851, 15015, 16215, 17460, 53460, 57750, 62205, 176345, 190035, 204246, 549094, 590759, 634075, 1705795

Offset

1,14

Links

Table of n, a(n) for n=1..44.

Crossrefs

Sequence in context: A252481 A308854 A144582 * A048002 A256523 A125098

Adjacent sequences: A048021 A048022 A048023 * A048025 A048026 A048027

Keyword

nonn

Author

Clark Kimberling

Status

approved