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A052093
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a(n)^4 is the smallest fourth power whose decimal expansion digits occur with same frequency n.
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4
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OFFSET
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1,2
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COMMENTS
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Terms calculated by Jeff Heleen.
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LINKS
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Table of n, a(n) for n=1..7.
Patrick De Geest, Numbers whose digits occur with same frequency
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EXAMPLE
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207^4 = 1836036801 and digits 0,1,3,6 and 8 each occur twice.
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PROG
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(Python)
g = agen(POW=4) # agen() in A054212
print([next(g) for n in range(1, 5)]) # Michael S. Branicky, Dec 17 2020
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CROSSREFS
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Cf. A052094, A052069, A052071.
Sequence in context: A204868 A223650 A232346 * A103477 A080531 A123136
Adjacent sequences: A052090 A052091 A052092 * A052094 A052095 A052096
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KEYWORD
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nonn,base,hard,more
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AUTHOR
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Patrick De Geest, Jan 15 2000
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EXTENSIONS
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Offset corrected by Michel Marcus, Aug 12 2015
a(6) corrected and a(7) from Michael S. Branicky, Dec 17 2020
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STATUS
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approved
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