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A048370
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a(n)^3 is smallest cube containing exactly n 5's.
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10
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5, 25, 136, 715, 1526, 11828, 8121, 115798, 319405, 1771087, 2179693, 11665419, 38160335, 176024528, 1367063798, 3257101805, 9109186828, 38598478444, 136736651535, 380814792667, 821922685008
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..21.
Eric Weisstein's World of Mathematics, Cubic Number
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MATHEMATICA
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nsmall = Table[Infinity, 15];
For[i = 0, i <= 10^6, i++, n0 = Count[IntegerDigits[i^3], 5];
If[nsmall[[n0]] > i, nsmall[[n0]] = i]];
Cases[nsmall, _?NumberQ] (* Robert Price, Mar 20 2020 *)
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CROSSREFS
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Cf. A036532, A048365, A048366, A048367, A048368, A048369, A048371, A048372, A048373, A048374.
Sequence in context: A222570 A344268 A144818 * A272706 A275905 A124891
Adjacent sequences: A048367 A048368 A048369 * A048371 A048372 A048373
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KEYWORD
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nonn,base,more
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AUTHOR
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Patrick De Geest, Mar 15 1999
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EXTENSIONS
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a(14) from Michel ten Voorde Jun 13 2003
a(15)-a(20) from Lars Blomberg, Jun 12 2011
a(21) from Giovanni Resta, Jun 29 2018
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STATUS
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approved
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