20 lines
408 B
Text
20 lines
408 B
Text
bell=: ([: +/\ (,~ {:))&.>@:{:
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,. bell^:(<5) <1
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+--------------+
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|1 |
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+--------------+
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|1 2 |
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+--------------+
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|2 3 5 |
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+--------------+
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|5 7 10 15 |
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+--------------+
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|15 20 27 37 52|
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+--------------+
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{.&> bell^:(<15) <1
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1 1 2 5 15 52 203 877 4140 21147 115975 678570 4213597 27644437 190899322
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{:>bell^:49<1x
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185724268771078270438257767181908917499221852770
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