A018003 Powers of cube root of 10 rounded down.

1, 2, 4, 10, 21, 46, 100, 215, 464, 1000, 2154, 4641, 10000, 21544, 46415, 100000, 215443, 464158, 1000000, 2154434, 4641588, 10000000, 21544346, 46415888, 100000000, 215443469, 464158883, 1000000000, 2154434690, 4641588833, 10000000000, 21544346900

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..200

Crossrefs

Cf. powers of cube root of k rounded down: A017979 (k=2), A017982 (k=3), A017985 (k=4), A017988 (k=5), A017991 (k=6), A017994 (k=7), A018000 (k=9),this sequence (k=10), A018006 (k=11), A018009 (k=12), A018012 (k=13), A018015 (k=14), A018018 (k=15), A018021 (k=16), A018024 (k=17), A018027 (k=18), A018030 (k=19), A018033 (k=20), A018036 (k=21), A018039 (k=22), A018042 (k=23), A018045 (k=24).

Programs

Magma

[Floor(10^(n/3)): n in [0..50]]; // Vincenzo Librandi, Jan 06 2014

Maple

A018003:=n->floor(10^(n/3)); seq(A018003(n), n=0..40); # Wesley Ivan Hurt, Jun 23 2014

Mathematica

Table[Floor[10^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 06 2014 *)

PARI

a(n) = floor(10^(n/3))

Formula

a(n) = floor( 10^(n/3) ).

Extensions

More terms from Vincenzo Librandi, Jan 06 2014