A087709 A087708/5.

4, 4, 1, 4, 3, 2, 4, 8, 3, 354, 18, 4, 58, 8, 5, 9, 354, 6, 18, 19, 7, 58, 13, 8, 14, 69, 9, 44, 354, 10, 29, 18, 11, 19, 33, 12, 58, 3569, 13, 104, 23, 14, 24, 69, 15, 43, 44, 16, 354, 28, 17, 29, 83, 18, 143, 243, 19, 54, 33, 20, 34, 58, 21, 3569, 169, 22, 104, 38, 23, 39, 308, 24

Offset

1,1

Links

Table of n, a(n) for n=1..72.

Prog

(Python)
from fractions import Fraction
def A087709(n):
    x = Fraction(n)
    while x.denominator > 1 or x<=n:
        x = Fraction(5*x.__ceil__(), 3)
    return int(x)//5 # Chai Wah Wu, Sep 02 2023

Crossrefs

Sequence in context: A023401 A055180 A030788 * A106642 A327855 A213056

Adjacent sequences: A087706 A087707 A087708 * A087710 A087711 A087712

Keyword

nonn

Author

N. J. A. Sloane, Sep 29 2003

Status

approved