Assuming there's an even chance of doing 1-8 hits with kraken, that leave 64 different possibilities with dual wielding them.
1/64 - 2 hits, 1+1
2/64 - 3 hits, 1+2 2+1
3/64 - 4 hits, 1+3 2+2 3+1
4/64 - 5 hits, 1+4 2+3 3+2 4+1
5/64 - 6 hits, 1+5 2+4 3+3 4+2 5+1
6/64 - 7 hits, 1+6 2+5 3+4 4+3 5+2...