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Community Bot
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A representation of $n$ as a sum of three triangular numbers is equivalent to representing $8n+3$ as a sum of three odd squares. The question of computing representations as a sum of three squares has been much discussed here, see Efficient computation of integer representation as a sum of three squaresEfficient computation of integer representation as a sum of three squares

A representation of $n$ as a sum of three triangular numbers is equivalent to representing $8n+3$ as a sum of three odd squares. The question of computing representations as a sum of three squares has been much discussed here, see Efficient computation of integer representation as a sum of three squares

A representation of $n$ as a sum of three triangular numbers is equivalent to representing $8n+3$ as a sum of three odd squares. The question of computing representations as a sum of three squares has been much discussed here, see Efficient computation of integer representation as a sum of three squares

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Igor Rivin
Igor Rivin
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A representation of $n$ as a sum of three triangular numbers is equivalent to representing $8n+3$ as a sum of three odd squares. The question of computing representations as a sum of three squares has been much discussed here, see Efficient computation of integer representation as a sum of three squares