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A321009
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a(1)=2; thereafter a(n) is obtained by applying Eric Angelini's remove-repeated-digits map, x->A320486(x), to n*a(n-1), stopping when 0 is reached.
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1
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2, 4, 12, 48, 240, 10, 70, 560, 54, 540, 5940, 71280, 9240, 129360, 19, 304, 5168, 93024, 145, 29, 609, 198, 0
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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REFERENCES
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Eric Angelini, Posting to Sequence Fans Mailing List, Oct 24 2018
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LINKS
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EXAMPLE
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a(5)=240, so for a(6) we compute 6*240 = 1440 which becomes 10 = a(6).
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CROSSREFS
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KEYWORD
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nonn,base,fini,full
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AUTHOR
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STATUS
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approved
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