# Sum of Sequence of Triangular Numbers/Historical Note

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## Historical Note on Sum of Sequence of Triangular Numbers

David M. Burton, in his *Elementary Number Theory, revised ed.* of $1980$, reports that this result is attributed to Aryabhata the Elder and dates from circa $500$ C.E.

## Sources

- 1980: David M. Burton:
*Elementary Number Theory*(revised ed.) ... (previous) ... (next): Chapter $1$: Some Preliminary Considerations: $1.3$ Early Number Theory: Problems $1.3$: $3$