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A291642 Numbers k such that 3 is the smallest decimal digit of k^3. 7

%I

%S 7,15,33,46,76,77,95,96,157,167,175,179,186,197,207,213,215,326,327,

%T 332,335,353,355,379,389,427,429,437,454,457,464,714,764,775,813,816,

%U 826,859,883,922,927,942,957,1526,1529,1553,1557,1636,1692,1695,1753,1782

%N Numbers k such that 3 is the smallest decimal digit of k^3.

%H Robert Israel, <a href="/A291642/b291642.txt">Table of n, a(n) for n = 1..10000</a>

%e 33 is in the sequence because 33^3 = 35937, the smallest decimal digit of which is 3.

%p filter:= n -> min(convert(n^3,base,10))=3:

%p select(filter, [$1..10000]); # _Robert Israel_, Aug 29 2017

%o (PARI) select(k->vecmin(digits(k^3))==3, vector(5000, k, k))

%Y Cf. A291639, A291640, A291641, A291643, A291644.

%K nonn,base

%O 1,1

%A _Colin Barker_, Aug 28 2017

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Last modified September 28 14:58 EDT 2021. Contains 347716 sequences. (Running on oeis4.)