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A050720 Number of palindromes of length n and containing the digit '0'. 1
0, 0, 9, 9, 171, 171, 2439, 2439, 30951, 30951, 368559, 368559, 4217031, 4217031, 46953279, 46953279, 512579511, 512579511, 5513215599, 5513215599, 58618940391, 58618940391, 617570463519, 617570463519, 6458134171671 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

EXAMPLE

For length 3 we find nine numbers 101, 202, ... 909.

CROSSREFS

Cf. A050683, A050686.

Sequence in context: A092548 A121389 A065242 * A171738 A124116 A058200

Adjacent sequences:  A050717 A050718 A050719 * A050721 A050722 A050723

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1999.

EXTENSIONS

More terms from Michael Lugo (mlugo(AT)thelabelguy.com), Dec 22 1999

Corrected by T. D. Noe (noe(AT)sspectra.com), Nov 08 2006

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Last modified February 17 09:41 EST 2012. Contains 206009 sequences.