A018184 Powers of fifth root of 24 rounded to nearest integer.

1, 2, 4, 7, 13, 24, 45, 86, 162, 305, 576, 1088, 2054, 3877, 7321, 13824, 26102, 49285, 93059, 175713, 331776, 626451, 1182849, 2233427, 4217101, 7962624, 15034828, 28388386, 53602242, 101210414, 191102976

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Links

• Chai Wah Wu, Table of n, a(n) for n = 0..1000

Programs

Python

from gmpy2 import iroot_rem
def A018142(n):
    i,j = iroot_rem(24**n,5)
    return int(i) + int(32*j >= 10*i*(4*i*(2*i*(i + 1) + 1) + 1) + 1) # Chai Wah Wu, Aug 18 2016