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A263846 Floor of cube root of n-th prime. 2
1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..113.

FORMULA

a(n) = A048766(A000040(n)). - Michel Marcus, Nov 10 2015

PROG

(PARI) a(n) = sqrtnint(prime(n), 3); \\ Michel Marcus, Nov 10 2015

CROSSREFS

Cf. A000006, A000196, A048766.

Sequence in context: A284248 A204166 A227581 * A178786 A000196 A111850

Adjacent sequences:  A263843 A263844 A263845 * A263847 A263848 A263849

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 09 2015

STATUS

approved

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Last modified January 23 01:55 EST 2018. Contains 298093 sequences.