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A123058
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Number of different quartets of 4 differents bemirps of n digits.
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0
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0, 0, 0, 0, 1, 1, 1, 2, 9, 29, 60, 221, 749, 2560, 9432, 35685
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,8
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LINKS
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EXAMPLE
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1061 1091 1901 1601 are a quartet of 4 different bemirps and there is no other different quartet of 4 digits, so a(4)=1
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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