

A136269


Floor of sum of the first 10^n cube roots.


0




OFFSET

0,2


COMMENTS

Conjecture: For n = 3k, a(n) = (3/4)*10^(4n/3)+5*10^(n/31)1.


LINKS

Table of n, a(n) for n=0..9.


EXAMPLE

For n = 6, a(6) = (3/4)*10^8 + 5* 10^11 = 75000049.


PROG

(PARI) /* For this sequence, p = 3 */ g2(n, p) = for(j=0, n, s=0; for(x=0, 10^j, s+=x^(1/p)); print1(floor(s)", "))


CROSSREFS

Sequence in context: A173906 A227102 A221577 * A010368 A053103 A223032
Adjacent sequences: A136266 A136267 A136268 * A136270 A136271 A136272


KEYWORD

nonn


AUTHOR

Cino Hilliard, Mar 19 2008


STATUS

approved



