OFFSET
1,4
LINKS
Eric W. Weisstein's World of Mathematics, Arithmetic Mean
EXAMPLE
a(8) = 7 because we have [8], [7, 1], [1, 7], [6, 2], [2, 6], [5, 3] and [3, 5].
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Dec 05 2020
STATUS
approved