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A027918
Least k such that 1+2+...+k >= E{1,2,...,n}, where E is the 4th elementary symmetric function.
0
7, 23, 57, 116, 212, 356, 562, 845, 1224, 1717, 2345, 3130, 4097, 5272, 6682, 8357, 10327, 12627, 15290, 18353, 21855, 25834, 30332, 35393, 41062, 47385, 54412, 62191, 70776
OFFSET
4,1
FORMULA
a(n) = min{k: A000217(k) >= A000915(n-3)}. - R. J. Mathar, Sep 23 2016
CROSSREFS
Sequence in context: A172252 A027116 A151718 * A058195 A213770 A235683
KEYWORD
nonn
STATUS
approved