A350697 - OEIS

A350697

Smallest number m > 1 such that n * m = A350538(n) contains only even digits.

2, 2, 2, 2, 4, 4, 4, 3, 32, 2, 2, 2, 2, 2, 4, 3, 4, 16, 12, 2, 2, 2, 2, 2, 8, 8, 18, 3, 14, 2, 2, 2, 2, 2, 8, 8, 6, 6, 12, 2, 2, 2, 2, 2, 64, 10, 6, 5, 14, 4, 4, 4, 8, 9, 4, 4, 4, 7, 14, 4, 4, 4, 14, 7, 4, 4, 4, 3, 12, 4, 4, 4, 28, 3, 8, 3, 6, 6, 34, 3, 6, 3, 8, 5, 8

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OFFSET

1,1

COMMENTS

The smallest odd term is a(48) = 5 because 48*5 = 240.

Record values of a(n) are 2, 4, 32, 64, ...

LINKS

Table of n, a(n) for n=1..85.

FORMULA

a(n) = A350538(n) / n.

EXAMPLE

The smallest proper multiple of 9 with only even digits is A350538(9) = 288, as 288 = 9 * 32, a(9) = 32.