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A046383 Palindromes with exactly 9 palindromic prime factors (counted with multiplicity). 1
4224, 6336, 23232, 213312, 276672, 21755712, 23888832, 63577536, 63788736, 65499456, 67566576, 286121682, 2118338112, 2158888512, 2365885632, 2536556352, 2559999552, 2627117262, 2745665472, 5781111875, 6338118336, 42282628224, 52173037125, 80219291208 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Lars Blomberg, Table of n, a(n) for n = 1..234, terms < 10^16.

EXAMPLE

The palindrome 6338118336 is a term since it has 9 factors 2^6 3 11 3001003, all palindromic.

CROSSREFS

Cf. A046335.

Sequence in context: A109488 A245316 A046335 * A188789 A170777 A294716

Adjacent sequences:  A046380 A046381 A046382 * A046384 A046385 A046386

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Jun 15 1998

EXTENSIONS

More terms from Lars Blomberg, Nov 06 2015

STATUS

approved

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Last modified December 11 23:44 EST 2019. Contains 329945 sequences. (Running on oeis4.)