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Search: id:A056525
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A056525 Palindromes with odd number of digits. +0
3
1, 2, 3, 4, 5, 6, 7, 8, 9, 101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 202, 212, 222, 232, 242, 252, 262, 272, 282, 292, 303, 313, 323, 333, 343, 353, 363, 373, 383, 393, 404, 414, 424, 434, 444, 454, 464, 474, 484, 494, 505, 515, 525, 535, 545, 555, 565 (list; graph; listen)
OFFSET

1,2

COMMENT

Concatenation of all but final digits of n with reverse of n (keeping leading zeros in the reverse)

LINKS

Index entries for sequences related to final digits of numbers

FORMULA

a(n) = floor[n/10]*10^A055642(n)+A004086(n)

CROSSREFS

Cf. A002113, A004086, A056524.

Sequence in context: A082216 A052426 A056142 this_sequence A071272 A083851 A071275

Adjacent sequences: A056522 A056523 A056524 this_sequence A056526 A056527 A056528

KEYWORD

base,easy,nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Jun 16 2000

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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