6
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What could be the next number in the sequence:

57, 74, 65, 61, 37, 58, ?

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3
  • 1
    $\begingroup$ You should start this sequence with 4 and see what happens... :) $\endgroup$
    – Stiv
    Feb 17, 2020 at 23:30
  • 3
    $\begingroup$ @Stiv You'd probably end up with something like this :) $\endgroup$
    – Avi
    Feb 18, 2020 at 0:05
  • $\begingroup$ Ooh that's nice $\endgroup$
    – RIPPLR
    Feb 19, 2020 at 1:53

1 Answer 1

9
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The next value is

89

The pattern is

The sum of the squares of each digit of the previous value

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