MBN, or Miner's Bracket Enumeration, was inspired by BEAF and weaker than it, but can produce big numbers.

Formula:

If you take [4, 3, 9], you do:

. And if you take [8, 3, 77, 14, 19], than it will be

. But you can't create big numbers easily, as Graham's Number would be

.

And if you understand the pattern, you understood the function!

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