A046410 - OEIS

%I #8 Oct 10 2019 22:43:00

%S 6666,22888822,66888866,413979314,2228668222,2668668662,2888668882,

%T 3315115133,6668228666,200446644002,222266662222,222446644222,

%U 224488884422,228866668822,244666666442,246664466642,246686686642

%N Palindromes with exactly 4 distinct palindromic prime factors.

%Y Cf. A046330, A046378.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, Jun 15 1998

%E a(10)-a(17) from _Donovan Johnson_, Jul 20 2010