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A052093 a(n)^4 is the smallest fourth power whose decimal expansion digits occur with same frequency n. 4
0, 207, 130398, 5694207, 426424828, 18304641024, 1002719491659 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Terms calculated by Jeff Heleen.
LINKS
EXAMPLE
207^4 = 1836036801 and digits 0,1,3,6 and 8 each occur twice.
PROG
(Python)
g = agen(POW=4) # agen() in A054212
print([next(g) for n in range(1, 5)]) # Michael S. Branicky, Dec 17 2020
CROSSREFS
Sequence in context: A204868 A223650 A232346 * A103477 A080531 A123136
KEYWORD
nonn,base,hard,more
AUTHOR
Patrick De Geest, Jan 15 2000
EXTENSIONS
Offset corrected by Michel Marcus, Aug 12 2015
a(6) corrected and a(7) from Michael S. Branicky, Dec 17 2020
STATUS
approved

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Last modified March 18 22:09 EDT 2024. Contains 370951 sequences. (Running on oeis4.)