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A082810 Palindromes in which every digit occurs with equal frequency. 1
1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 44, 55, 66, 77, 88, 99, 111, 222, 333, 444, 555, 666, 777, 888, 999, 1001, 1111, 1221, 1331, 1441, 1551, 1661, 1771, 1881, 1991, 2002, 2112, 2222, 2332, 2442, 2552, 2662, 2772, 2882, 2992, 3003, 3113, 3223, 3333, 3443 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A superset of A010785. Can someone calculate the index of a term k having d digits? There are terms like 1, 2, 3, 4, 5, 6, 7, 8, 9, 1331, 2442, 3553, ... which have the property that a(31) = 1331, a(42) = 2442, A(53) = 3553 etc. Are there infinitely many such terms?

LINKS

Table of n, a(n) for n=1..52.

EXAMPLE

132231 is a term.

CROSSREFS

Cf. A010785.

Sequence in context: A214019 A160818 A244514 * A344550 A010785 A343524

Adjacent sequences:  A082807 A082808 A082809 * A082811 A082812 A082813

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy, Apr 21 2003

STATUS

approved

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Last modified July 31 02:01 EDT 2021. Contains 346366 sequences. (Running on oeis4.)