A062108 a(n) = floor(n^(3/4)).

0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 19, 19, 19, 19, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 24, 24, 24, 24, 25, 25

Offset: 0

Author

Henry Bottomley, May 30 2001

Keywords

• nonn
• easy

Examples

			a(100) = floor(100^(3/4)) = floor(1000000^(1/4)) = floor(31.62...) = 31.
		

Links

• Harry J. Smith, Table of n, a(n) for n = 0..1000

Crossrefs

Cf. A000196, A061054, A100196.

Programs

Maple

seq(floor(n^(3/4)),n=0..90); # Muniru A Asiru, Jul 01 2018

Mathematica

Floor[Range[0,80]^(3/4)] (* Harvey P. Dale, Feb 12 2015 *)

PARI

{ default(realprecision, 100); for (n=0, 1000, write("b062108.txt", n, " ", floor(n^(3/4) + 0.0000001)) ) } \\ Harry J. Smith, Aug 01 2009

Formula

a(n) = A061054(n) - n.