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A061584
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a(1) = 1, a(n)= number obtained by replacing each digit of a(n-1) with six times its value.
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5
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1, 6, 36, 1836, 6481836, 3624486481836, 1836122424483624486481836, 64818366121224122424481836122424483624486481836, 362448648183636612612122461212241224244864818366121224122424481836122424483624486481836
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OFFSET
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1,2
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COMMENTS
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a(n) contains all of a(n-1) as its least significant digits.
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LINKS
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MATHEMATICA
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NestList[FromDigits[Flatten[IntegerDigits/@(6 IntegerDigits[#])]]&, 1, 10] (* Harvey P. Dale, Aug 26 2022 *)
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PROG
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(Python)
an = "1"
a061584 = []
while n > 1:
a061584.append(int(an))
newan = ""
for i in an:
newan += str(6*int(i))
an = newan
n -= 1
a061584.append(int(an))
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CROSSREFS
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KEYWORD
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nonn,base,easy
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AUTHOR
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org) and Asher Auel, May 15 2001
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STATUS
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approved
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