Trollathon 4-13

Level pending

$000001 \rightarrow 111$

$011001 \rightarrow 1491225$

$101001 \rightarrow 2323$

$111111 \rightarrow 120$

$111100 \rightarrow \text{?}$

The answer is 48112.

1 solution

Zi Song Yeoh
Apr 28, 2014

This is a very tough problem. oeis is the key to solving this problem. Every pattern in oeis is coded with a 6-digit number. So, if we search for A000001, A011001 and etc..., we find that the right hand side numbers are obtained by concentrating the first three terms of the sequence. So, searching for $A111100$ in oeis gives $4, 8, 112$ as the first three terms. So, the answer is $48112$ .

i tried binary conversion and then failed xd, nice problem

Mardokay Mosazghi - 6 years, 4 months ago

Trollathon 4-13

The answer is 48112.

1 solution

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