OFFSET
1,2
FORMULA
a(n) = n-1+ceiling(n^2/e)
MATHEMATICA
a=E; b=0;
Table[n+Floor[(a*n+b)^(1/2)], {n, 120}]
Table[n-1+Ceiling[(n*n-b)/a], {n, 80}]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jan 09 2011
STATUS
approved