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The y-coordinate of the point where x + y = n, x & y are integers and x/y is as close as possible to e.
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%I #22 Feb 18 2024 12:26:51

%S 1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,6,6,6,6,7,7,7,8,8,8,8,9,9,9,

%T 9,10,10,10,11,11,11,11,12,12,12,12,13,13,13,13,14,14,14,15,15,15,15,

%U 16,16,16,16,17,17,17,17,18,18,18,19,19,19,19,20,20

%N The y-coordinate of the point where x + y = n, x & y are integers and x/y is as close as possible to e.

%C a(n) is nondecreasing; lim_{n->oo} a(n) = oo.

%C Swapping the x and y coordinate of the sequence does not yield the sequence defined as the point where x + y = n, x and y are integers and x/y is as close as possible to 1/e even when excluding terms that would lead to a division by 0.

%e For n = 3, the possible points are (0,3), (1,2), (2,1), as any negative fraction would would be further from e than 0/3. The closest fraction to e out of these is 2/1 so a(3) = 1.

%Y Cf. A001113 (e), A367328 (x-coordinate), A007677.

%K easy,frac,nonn

%O 1,5

%A _Colin Linzer_, Nov 14 2023