Function Repository Resource:

ArrayPatternFromIndex

Convert the size, index and base into an integer array pattern

Contributed by: Ed Pegg Jr

ResourceFunction["ArrayPatternFromIndex"][{size,index,b}]

creates an array of the given size using the digits of index in base b.

Details

The index must be a non-negative integer.

Convert size, index and base 2 into a binary array:

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Convert size, index and base 3 into a ternary array:

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The resource function ArrayPatternToIndex is the inverse of ArrayPatternFromIndex:

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