$  perl pseudo_acker2.pl 2 4
Iteration 1: i = 2, j = 4
Iteration 2: i = 2, j = 3
Iteration 3: i = 2, j = 2
Iteration 4: i = 2, j = 1
Iteration 5: i = 1, j = 2
Iteration 6: i = 1, j = 4
Iteration 7: i = 1, j = 16
Iteration 8: i = 1, j = 65536
ackermann ( 2, 4) = 200352993040684646497907235156025575044782547556975141926501697371089405955631145308950613088093334810103
823434290726318182294938211881266886950636476154702916504187191635158796634721944293092798208430910485599
057015931895963952486337236720300291696959215610876494888925409080591145703767520850020667156370236612635
974714480711177481588091413574272096719015183628256061809145885269982614142503012339110827360384376787644
904320596037912449090570756031403507616256247603186379312648470374378295497561377098160461441330869211810