perplexus.info :: Numbers : Consecutive Integer Series

Consecutive Integer Series (Posted on 2007-05-14)

In the infinite series 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 5... each positive integer k appears k times in consecutive order.

Write a formula for the sum of the first n terms of the series.

See The Solution Submitted by Dennis

Rating: 4.5000 (2 votes)

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re: NAME IT

| Comment 9 of 12 |

(In reply to NAME IT by Ady TZIDON)

I think PARI is the name of the programming language in which Sloane presents an algorithm for this series, rather than the name of this series.

Posted by Charlie on 2007-05-15 01:30:18

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