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A046378
Palindromes with exactly 4 palindromic prime factors (counted with multiplicity).
+0
2
88, 484, 525, 686, 808, 2662, 3773, 3993, 4444, 6666, 9999, 14641, 24442, 34643, 36663, 40804, 52525, 134431, 224422, 336633, 1234321, 1596951, 2060602, 3090903, 11333311, 14699641, 22888822, 66888866, 104060401, 125888521
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified November 25 13:42 EST 2009. Contains 167481 sequences.
AT&T Labs Research
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