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Search: id:A048093
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A048093 Number of nonempty subsets of {1,2,...,n} in which exactly 1/2 of the elements are <= sqrt(n). +0
3
0, 1, 2, 5, 9, 14, 20, 27, 83, 119, 164, 219, 285, 363, 454, 1819, 2379, 3059, 3875, 4844, 5984, 7314, 8854, 10625, 53129, 65779, 80729, 98279, 118754, 142505, 169910, 201375, 237335, 278255, 324631, 1947791, 2324783, 2760680 (list; graph; listen)
OFFSET

1,3
CROSSREFS

Cf. A084919.

Sequence in context: A134189 A109470 A112873 this_sequence A024669 A006482 A139423

Adjacent sequences: A048090 A048091 A048092 this_sequence A048094 A048095 A048096

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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