

A109882


Palindromes with either no internal digits or all internal digits are 0.


0



0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 202, 303, 404, 505, 606, 707, 808, 909, 1001, 2002, 3003, 4004, 5005, 6006, 7007, 8008, 9009, 10001, 20002, 30003, 40004, 50005, 60006, 70007, 80008, 90009, 100001, 200002, 300003, 400004
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OFFSET

1,3


COMMENTS

How is this sequence obtained from the given formula? What values for k are used? In particular, how are the terms a(1)a(10) obtained using this formula? Using an inner loop for m and an outer loop for k, starting at m=1 and k=1, one obtains the infinite subsequence starting 11, 22, 33, 44, ....  Felix FrÃ¶hlich, Jul 26 2014
Answer, maybe: The formula is only supposed to produce the terms with more than one digit?  N. J. A. Sloane, Jul 27 2014


LINKS

Table of n, a(n) for n=1..50.


FORMULA

The singledigit numbers, and then m*10^k + a where m is 1 to 9. [Revised by N. J. A. Sloane, Jul 27 2014]


CROSSREFS

Sequence in context: A193413 A087992 A062687 * A109872 A030285 A283870
Adjacent sequences: A109879 A109880 A109881 * A109883 A109884 A109885


KEYWORD

base,nonn


AUTHOR

Amarnath Murthy, Jul 10 2005


EXTENSIONS

Corrected definition, fixed offset, extended.  David Wasserman, Oct 15 2008
0 added and name changed by Arkadiusz Wesolowski, Sep 07 2011


STATUS

approved



