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A036532
Smallest cube containing exactly n 5's.
7
0, 125, 15625, 2515456, 365525875, 3553559576, 1654755935552, 535585155561, 1552755855549592, 32585555653355125, 5555455662315755503, 10355855655959525557, 1587453553555655755059, 55569505975375555595375, 5454055655655586555645952
OFFSET
0,2
COMMENTS
a(n)^(1/3) = A048370(n) is the index of the first occurrence of n in sequence A269245. - M. F. Hasler, Feb 21 2016
LINKS
FORMULA
a(n) = A048370(n)^3. - M. F. Hasler, Feb 21 2016
MATHEMATICA
nsmall = Table[Infinity, 20];
For[i = 0, i <= 10^6, i++, n0 = Count[IntegerDigits[i^3], 5];
If[nsmall[[n0 + 1]] > i^3, nsmall[[n0 + 1]] = i^3]];
Cases[nsmall, _?NumberQ] (* Robert Price, Mar 21 2020 *)
CROSSREFS
Cf. A048370, A036527 - A036536 for other digits 0 - 9.
Sequence in context: A067972 A094197 A067491 * A086704 A163596 A194654
KEYWORD
nonn,base
EXTENSIONS
Extended with a(0) = 0 by M. F. Hasler, Feb 21 2016
a(12)-a(14) from Giovanni Resta, Jun 29 2018
STATUS
approved