A046241 Numbers whose cube is palindromic in base 9.

0, 1, 2, 10, 38, 82, 91, 730, 6562, 6643, 59050, 531442, 532171, 4782970, 43046722, 43053283, 387420490, 3486784402, 3486843451, 31381059610

Offset

1,3

Comments

No more terms through 190000000000. - Ryan Propper, Jun 01 2006

Links

Table of n, a(n) for n=1..20.

Patrick De Geest, World!Of Numbers, Palindromic cubes in bases 2 to 17.

Prog

(PARI) isok(k) = my(d=digits(k^3, 9)); Vecrev(d) == d; \\ Michel Marcus, Aug 02 2022
(Python)
from itertools import count, islice
from sympy.ntheory import is_palindromic as ispal
def agen(startk=0): yield from (k for k in count(startk) if ispal(k**3, 9))
print(list(islice(agen(), 13))) # Michael S. Branicky, Aug 02 2022

Crossrefs

Cf. A046242.

Sequence in context: A005968 A212881 A177173 * A048499 A119358 A110148

Adjacent sequences: A046238 A046239 A046240 * A046242 A046243 A046244

Keyword

nonn,base,more

Author

Patrick De Geest, May 15 1998

Extensions

More terms from Ryan Propper, Jun 01 2006

Status

approved