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)

Comments: ( Back to comment list | You must be logged in to post comments.)

re: Better but worse

| Comment 3 of 12 |

(In reply to Better but worse by Jer)

Thanks for the correction. I must have checked the numbers in the series several times - and I still wrote it incorrectly!

Posted by Dennis on 2007-05-14 16:28:10

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