trapezoidal number

natural number which is a sum of consecutive integers greater than 1
Thing general Q115868096
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trapezoidal number

Summary

Key Facts

  • trapezoidal number's image is recorded as Trapezzahl 1.svg[1].
  • trapezoidal number's subclass of is recorded as polite number[2].
  • trapezoidal number's OEIS ID is recorded as A165513[3].
  • trapezoidal number's defining formula is recorded as \sum_{i=m}^n i, 1 < m < n<sup id="cite-C4" class="cite-ref" title="trapezoidal number — defining formula (P2534): \sum_{i=m}^n i, 1 < m < n">[4].
  • trapezoidal number's in defining formula is recorded as \sum[5].
  • trapezoidal number's in defining formula is recorded as m[6].
  • trapezoidal number's in defining formula is recorded as n[7].

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APA 4ort.xyz Knowledge Graph. (2026). trapezoidal number. Retrieved May 7, 2026, from https://4ort.xyz/entity/trapezoidal-number
MLA “trapezoidal number.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/trapezoidal-number.
BibTeX @misc{4ortxyz_trapezoidal-number_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{trapezoidal number}}, year = {2026}, url = {https://4ort.xyz/entity/trapezoidal-number}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): trapezoidal number — https://4ort.xyz/entity/trapezoidal-number (retrieved 2026-05-07)

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