# squared triangular number

> the sum of the first n cubes, which equals the square of the nth triangular number

**Wikidata**: [Q2197859](https://www.wikidata.org/wiki/Q2197859)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Squared_triangular_number)  
**Source**: https://4ort.xyz/entity/squared-triangular-number