A304880 a(n) is the numerator of the smallest nonnegative fraction r such that round(10^d*r) = n, where d is the number of digits of n and Gaussian rounding (round half to even) is applied.

0, 1, 1, 2, 3, 1, 5, 2, 3, 6, 2, 2, 3, 12, 5, 9, 9, 1, 7, 5, 8, 8, 20, 16, 4, 13, 25, 22, 11, 2, 18, 18, 23, 27, 33, 29, 27, 23, 3, 37, 32, 32, 22, 37, 37, 41, 41, 20, 19, 33, 1, 50, 17, 52, 38, 6, 5, 13, 23, 55, 25, 23, 8, 62, 47, 20, 19, 2, 27, 37, 57, 55

Offset: 0

Author

Peter Luschny, May 20 2018

Keywords

• nonn
• frac

Crossrefs

Cf. A304879.

Programs

Maple

# Function r is defined in A304879.
a := n -> numer(r(n)):
seq(a(n), n = 0..71);