A025209 a(n) = floor(floor(S2)/floor(S1)), where S2 and S1 are, respectively, the 2nd and first elementary symmetric functions of {log(k)}, k = 2,3,...,n.

0, 1, 2, 2, 3, 4, 5, 6, 8, 9, 10, 11, 13, 14, 15, 17, 18, 20, 21, 23, 24, 26, 27, 29, 31, 33, 34, 36, 37, 39, 41, 43, 44, 46, 48, 50, 52, 53, 55, 57, 59, 61, 63, 65, 67, 69, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 95

Offset

3,3

Links

Table of n, a(n) for n=3..61.

Formula

a(n) = floor(A025202(n) / A025201(n)). - Sean A. Irvine, Aug 17 2019

Crossrefs

Sequence in context: A338317 A141286 A165686 * A125573 A034139 A238886

Adjacent sequences: A025206 A025207 A025208 * A025210 A025211 A025212

Keyword

nonn

Author

Clark Kimberling

Extensions

Title corrected by Sean A. Irvine, Aug 17 2019

Status

approved