TREE(3) is significantly larger, though the explanations as far as I've found them require understanding much more complicated maths than for Graham's number (a

TREE(3) is significantly larger, though the explanations as far as I've found them require understanding much more complicated maths than for Graham's number (at least, I can follow the explanation for Graham's number, but not TREE(3)). The fun bit about TREE(3) is that the sequence TREE(1), TREE(2), TREE(3) goes : TREE(1): 1 TREE(2): 3 TREE(3): explosion n(4) is another fun one. n(3) is less than Graham's number, which itself is roughly A^64(4). n(4) is about A^A^(187196)(1) http://everything2.com/title/TREE%25283%2529 http://everything2.com/title/TREE%25283%2529