A088169 Numbers n such that the set S(n) = {k: k + reverse(k) = n} is not empty and all elements of S(n) have the same number of digits as n.
0, 2, 4, 6, 8, 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 141, 161, 181, 201, 202, 221, 222, 241, 242, 261, 262, 281, 282, 302, 303, 322, 323, 342, 343, 362, 363, 382, 383, 403, 404, 423, 424, 443, 444, 463, 464, 483, 484, 504, 505, 524, 525, 544, 545, 564, 565
Offset: 1
Examples
404 is a term since S(404) = {103, 202, 301, 400}.
Comments