A352153 - OEIS

A352153

Smallest digit in the decimal expansion of 1/n, ignoring leading and trailing 0's.

1, 5, 3, 2, 2, 1, 1, 1, 1, 1, 0, 3, 0, 1, 6, 2, 0, 5, 0, 5, 0, 4, 0, 1, 4, 1, 0, 1, 0, 3, 0, 1, 0, 0, 1, 2, 0, 0, 0, 2, 0, 0, 0, 2, 2, 0, 0, 0, 0, 2, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0

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OFFSET

1,2

COMMENTS

Leading 0's are not considered, otherwise a(n) would be 0 when n >= 11 (see examples for 13 and 14).

Trailing 0's are not also considered, otherwise when 1/n is a terminating decimal (A003592), a(n) would be also 0.

LINKS

Table of n, a(n) for n=1..94.

Index entries for sequences related to decimal expansion of 1/n

FORMULA

a(n) = n iff n = 1 or n = 3.

a(10*n) = a(n).