VOOZH about

URL: https://oeis.org/A072051

⇱ A072051 - OEIS

login
A072051
Smallest k such that gcd(k, reverse(k)) = 11^n.
0
11, 121, 1331, 14641, 121110352, 1332213872, 105923336431682, 4676049710123077, 36606937477221265, 30983951005022964839, 1365869521861436622239
OFFSET
1,1
FORMULA
a(n) = A069554(11^n).
EXAMPLE
a(8) = 4676049710123077 = (11^8)*13*1678009, reverse(a(8)) = 7703210179406764 = (11^8)*2*2*157*57223.
CROSSREFS
Cf. A004086, A055483, A069554, A071686 (=2^n), A072005 (=3^n), A072021 (=5^n), A072050 (=7^n).
Sequence in context: A055479 A195946 A003590 * A092846 A329734 A214993
KEYWORD
base,nonn
AUTHOR
Labos Elemer, Jun 10 2002
EXTENSIONS
a(9)-a(11) from Sean A. Irvine, Sep 02 2024
STATUS
approved