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Can you predict the next numbers in these two sequences, which are strongly related to each other.

20,12,14,8,7

and

4,1,5,9,11

these number sequences do not appear in oeis.org

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The next number in the first sequence is

3

Reasoning

Beginning at 20, and moving anti-clockwise, these are the numbers of the black/red segments of a standard dartboard

The next number in the second sequence is

16

Reasoning

Beginning at 4, and moving anti-clockwise, these are the numbers of the white/green segments of a standard dartboard

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  • $\begingroup$ :-) well done - great answer. $\endgroup$ – tom Mar 24 at 21:33

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