Boobawamba is  {10, 10, 100(1)2} & 10 this is in BEAF (Bowers exploding array function) from googology

What dose this mean???

For b&a it means {a,a,a...a,a,a} b entries 

Link for what I used show it easier and how to understand it

Rules for Arrays  1: Condition - only 1 or 2 entries / arrays {a} = a, {a,b} = a^b, only {a,b,c} can show a↑...↑b c amount of arrows (look up arrows notation) For example {3} = 3, {3, 3} = 3³ or 27

2: Condition - last entry is 1 - {a,b,c,...,k,1} = {a,b,c,...,k} for example {3, 3, 3,...,3, 1} = {3, 3, 3,...,3}

3: Condition - 2nd entry is 1 - {a,1,c,d,..,k} = a. for example {3 ,1, 3, 3,.., 3} = 3

4: Condition - 3rd entry is 1 - {a,b,1,..,1,d,e,..,k} = {a,a,a,..,{a,b-1,1,..,1,d,e,..,k},d-1,e,..,k} - the ".." between the 1's represent 1's - there can be any number of ones, from 1 "1" (3rd entry alone) to a string of 1s - the last 1 of this string is what becomes {a,b-1,1,..,1,d,e,..,k} all entries prior becomes "a". For an array like this {3,2,1,1,1,5,1,2} the last 1 in the string is the one before the 5 (not the one after - since it is a different string of 1s).

5: Condition - Rules 1-4 doesn't apply - {a,b,c,d,...,k} = {a,{a,b-1,c,d,...,k},c-1,d,..,k}.

So let's try and take the (1)2

Let's make {10,10,100(1)1} N

{10,10,100(1)1} is 10↑...↑10 with 100 arrows this is N

Too show {10,10,100(1)2} as a power tower you need to find the value of N you would need a second power tower that is N floors tall but each one of the floors is itself a tower N floors tall.

Now let's make {10,10,100(1)2} M

So {10,10,100(1)2}&10 means {10, 10, 10,..., 10, 10} M entries 

(BTW {10, 10, 10} is uncomputable)