I put the odometer function in a separate verb, in order to point out how you could use it to create all the combinations of dominoes. If you want each 2-number domino boxed, you can do this:
1 < ;. 2 |: |:49 2$(,7 7#:i.49){dice
If you want all the dominoes boxed up in a nice big box, then this:
< 7 7 $ 1 < ;. 2 |: |:49 2$(,7 7#:i.49){dice
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