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A036529
Smallest cube containing exactly n 2's.
6
0, 27, 21952, 2628072, 202262003, 229220928, 22521332224, 21148222722264, 25942222239227, 2272271222935232, 2262268226562252992, 4223937222222326272, 22225347273222227224, 122245292222422449622424, 2732072222242422541222208, 22422524292920620222272827
OFFSET
0,2
COMMENTS
a(n)^(1/3) = A048367(n) is the index of the first occurrence of n in sequence A269242. - M. F. Hasler, Feb 21 2016
LINKS
FORMULA
a(n) = A048367(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], 2];
If[nsmall[[n0 + 1]] > i^3, nsmall[[n0 + 1]] = i^3]];
Cases[nsmall, _?NumberQ] (* Robert Price, Mar 20 2020 *)
KEYWORD
nonn,base
EXTENSIONS
a(12)-a(15) from Giovanni Resta, Jun 29 2018
STATUS
approved