

A036532


Smallest cube containing exactly n 5's.


7



0, 125, 15625, 2515456, 365525875, 3553559576, 1654755935552, 535585155561, 1552755855549592, 32585555653355125, 5555455662315755503, 10355855655959525557, 1587453553555655755059, 55569505975375555595375, 5454055655655586555645952
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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

Giovanni Resta, Table of n, a(n) for n = 0..21


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
Adjacent sequences: A036529 A036530 A036531 * A036533 A036534 A036535


KEYWORD

nonn,base


AUTHOR

David W. Wilson


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



