14 lines
453 B
Raku
14 lines
453 B
Raku
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proto A(Int \𝑚, Int \𝑛) { (state @)[𝑚][𝑛] //= {*} }
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multi A(0, Int \𝑛) { 𝑛 + 1 }
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multi A(1, Int \𝑛) { 𝑛 + 2 }
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multi A(2, Int \𝑛) { 3 + 2 * 𝑛 }
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multi A(3, Int \𝑛) { 5 + 8 * (2 ** 𝑛 - 1) }
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multi A(Int \𝑚, 0 ) { A(𝑚 - 1, 1) }
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multi A(Int \𝑚, Int \𝑛) { A(𝑚 - 1, A(𝑚, 𝑛 - 1)) }
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# Testing:
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say A(4,1);
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say .chars, " digits starting with ", .substr(0,50), "..." given A(4,2);
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