A046409 Palindromes with exactly 3 distinct palindromic prime factors.
66, 606, 2222, 2882, 3333, 5555, 6886, 7777, 26462, 39693, 145541, 167761, 226622, 248842, 339933, 347743, 662266, 664466, 668866, 682286, 993399, 996699, 2080802, 2284822, 6080806, 6264626, 9396939, 11444411, 11666611, 11777711
Offset: 1
Links
- Chai Wah Wu, Table of n, a(n) for n = 1..1000