Fellow Monks: I am stumped as to what kind of loop (my guess) structure I would need to accomplish this paired numbers sequence; a pyramid number sequence (best description)... and no this is not homework... this is the (x,y) pair set that I am trying to come up with: 
1,2 2,3 3,4 4,5 5,6 6,7
1,3 2,4 3,5 4,6 5,7
1,4 2,5 3,6 4,7
1,5 2,6 3,7
1,6 2,7
1,7

[download]
I am betting that it is some kind of simple nested loop structure, but, again, I am really not sure where to begin. Sometimes the blantantly obvious can be quite elusive.
Thank you in advance for your wisdom.

In reply to generating pyramid number sequence by Anonymous Monk

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