Square Numbers which are Sum of Consecutive Powers/Mistake
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Source Work
1986: David Wells: Curious and Interesting Numbers:
- The Dictionary
- $121$
1997: David Wells: Curious and Interesting Numbers (2nd ed.):
- The Dictionary
- $121$
Mistake
- $121$ is the only square number that is the sum of consecutive powers from $1$: $121 = 1 + 3 + 9 + 27 + 81$.
Correction
- $400$ also has this property: $400 = 1 + 7 + 49 + 343$.
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $121$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $121$