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A085109 Palindromes with more than 3 digits in which the absolute difference of a pair of successive digits is identical. 2

%I #22 Apr 03 2021 12:12:23

%S 1111,2222,3333,4444,5555,6666,7777,8888,9999,10101,11111,12121,12321,

%T 13131,13531,14141,14741,15151,15951,16161,17171,18181,19191,20202,

%U 21012,21212,22222,23232,23432,24242,24642,25252,25852,26262,27272

%N Palindromes with more than 3 digits in which the absolute difference of a pair of successive digits is identical.

%C All the palindromes up to 999 are trivial members of this sequence except for the condition they do not have more than three digits.

%H David A. Corneth, <a href="/A085109/b085109.txt">Table of n, a(n) for n = 1..10000</a>

%e 10101 is in the sequence as every consecutive pair (u, v) has |u-v| = c for some constant c. - _David A. Corneth_, Apr 02 2021

%Y Cf. A002113.

%K nonn,base,easy

%O 1,1

%A _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jul 04 2003

%E More terms from _David Wasserman_, Jan 27 2005

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)