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A048370 a(n)^3 is smallest cube containing exactly n 5's. 10
5, 25, 136, 715, 1526, 11828, 8121, 115798, 319405, 1771087, 2179693, 11665419, 38160335, 176024528, 1367063798, 3257101805, 9109186828, 38598478444, 136736651535, 380814792667, 821922685008 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..21.

Eric Weisstein's World of Mathematics, Cubic Number

MATHEMATICA

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 *)

CROSSREFS

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

KEYWORD

nonn,base,more

AUTHOR

Patrick De Geest, Mar 15 1999

EXTENSIONS

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

STATUS

approved

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Last modified May 18 10:28 EDT 2022. Contains 353807 sequences. (Running on oeis4.)