Which beans have the most calories per dry-weight?
Note: This includes anything someone might refer to as a "bean" and excludes foods that are perishable.
This is possibly pointless to answer, the general calorie difference between bean varieties is less than the difference from sub-varieties and growing conditions
Use wikipedia or wolframalpha to get average figures for the beans you can get locally, but you really need to test them if this is truly important
For what it's worth chickpeas are very high and commonly available. Wheat is much higher still!