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List:{1}, {2,3},{4,5,6}....

• To: mathgroup at smc.vnet.net
• Subject: [mg129393] List:{1}, {2,3},{4,5,6}....
• From: hknetman <hknetman at hotmail.com>
• Date: Thu, 10 Jan 2013 21:39:36 -0500 (EST)
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I use the command
list = Table[i + 1, {n, 1, 5}, {i, n (n - 1)/2, n (n - 1)/2 + n - 1}]
to get the following result:
{{1}, {2, 3}, {4, 5, 6}, {7, 8, 9, 10}, {11, 12, 13, 14, 15}}

Is there any better method?

Thanks a lot.

• Follow-Ups:
  • Re: List:{1}, {2,3},{4,5,6}....
    • From: Bob Hanlon <hanlonr357@gmail.com>