OFFSET
1,1
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..200
FORMULA
a(n) = round(exp(gamma)*n*(n+1) + gamma) where gamma is the Euler-Mascheroni constant 0.57714... (A001620). - Carl R. White, Sep 01 2021
a(n) = A226184(n) + n. - Michel Marcus, Sep 09 2021
EXAMPLE
a(3) = 22 because 1/4 + 1/5 + ... + 1/21 < 1 + 1/2 + 1/3 < 1/4 + 1/5 + ... + 1/22.
MATHEMATICA
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, May 30 2013
STATUS
approved