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 A025203 a(n) = [ 3rd elementary symmetric function of {log(k)} ], k = 2,3,...,n. 2
 1, 6, 21, 54, 116, 220, 383, 623, 962, 1424, 2034, 2821, 3817, 5053, 6565, 8391, 10569, 13142, 16153, 19646, 23671, 28274, 33509, 39426, 46082, 53533, 61836, 71051, 81240, 92466, 104793, 118288, 133018, 149054, 166464, 185324, 205704, 227683, 251334 (list; graph; refs; listen; history; text; internal format)
 OFFSET 4,2 LINKS MAPLE SymmPolyn := proc(L::list, n::integer)     local c, a, sel;     a :=0 ;     sel := combinat[choose](nops(L), n) ;     for c in sel do         a := a+mul(L[e], e=c) ;     end do:     a; end proc: A025203 := proc(n)     [seq(log(k), k=2..n)] ;     SymmPolyn(%, 3);     floor(%) ; end proc: # R. J. Mathar, Sep 23 2016 CROSSREFS Sequence in context: A015644 A067680 A115052 * A262719 A238702 A162539 Adjacent sequences:  A025200 A025201 A025202 * A025204 A025205 A025206 KEYWORD nonn AUTHOR EXTENSIONS a(15) corrected by Neven Juric (neven.juric(AT)apis-it.hr), May 28 2004 Offset set to 4 by R. J. Mathar, Sep 23 2016 More terms from Sean A. Irvine, Aug 17 2019 STATUS approved

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Last modified December 11 02:20 EST 2019. Contains 329910 sequences. (Running on oeis4.)