OFFSET
0,29
COMMENTS
LINKS
Robert Israel, Table of n, a(n) for n = 0..10000
EXAMPLE
0^3 = 0 has a(0) = 0 digits '2'.
1^3 = 1 has a(1) = 0 digits '2'.
2^3 = 8 has a(2) = 0 digits '2'.
3^3 = 27 has a(3) = 1 digits '2'.
4^3 = 64 has a(4) = 0 digits '2'.
5^3 = 125 has a(5) = 1 digit '2'.
28^3 = 21952 is the least cube which has a(28) = 2 digits '2'.
MAPLE
seq(numboccur(2, convert(n^3, base, 10)), n=0..100); # Robert Israel, Jan 26 2020
MATHEMATICA
Table[DigitCount[n^3, 10, 2], {n, 0, 100}] (* Robert Price, Mar 21 2020 *)
PROG
(PARI) A269242(n)=#select(t->t==2, digits(n^3))
(Magma) [Multiplicity(Intseq(n^3), 2): n in [0..100]]; // Marius A. Burtea, Jan 26 2020
CROSSREFS
KEYWORD
nonn,base
AUTHOR
M. F. Hasler, Feb 20 2016
STATUS
approved