Wolfram|Alpha

Computing...

Input:

A(2, 3)


Result:

9


Expansion:

A(2, 3) |  =  | A(1, A(2, 2))\n |  =  | A(1, A(1, A(2, 1)))\n |  =  | A(1, A(1, A(1, A(2, 0))))\n |  =  | A(1, A(1, A(1, A(1, 1))))\n |  =  | A(1, A(1, A(1, A(0, A(1, 0)))))\n |  =  | A(1, A(1, A(1, A(0, A(0, 1)))))\n |  =  | A(1, A(1, A(1, A(0, 2))))\n |  =  | A(1, A(1, A(1, 3)))\n |  =  | A(1, A(1, A(0, A(1, 2))))\n |   (vertical ellipsis) |


Evaluation graph:



Function properties:

total  |  not primitive recursive

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