Revisions to The largest digital sum of the square of an n-digit number

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edit approved Nov 19, 2021 at 19:51

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The sequence 13, 31, 46, 63, 81, 97, 112, 130, 148, 162, ...,$13, 31, 46, 63, 81, 97, 112, 130, 148, 162, 180, \dots,$ (soonsequence A348300 in the oeisOEIS) shows the largest digital sum the square of an n$n$-digit (decimal) number has.

Is this sequence strictly increasing?

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edited Oct 11, 2021 at 19:12

Bernardo Recamán Santos

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clarification

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edited Oct 11, 2021 at 1:51

Bernardo Recamán Santos

3.7k
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The sequence 13, 31, 46, 63, 81, 97, 112, 130, 148, 162, ..., (soon in the oeis) shows the largest digital sum the square of an nn-digit (decimal) number has.

Is this sequence strictly increasing?

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asked Oct 10, 2021 at 22:47

Bernardo Recamán Santos

3.7k
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