A088170 -id:A088170 - cp's OEIS frontend

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

Klaus Brockhaus, Sep 21 2003

Subsequence of A067030.

			404 is a term since S(404) = {103, 202, 301, 400}.

Index entries for sequences related to Reverse and Add!

Cf. A067030, A088170, A088171.

A088171 Numbers n such that the set S(n) = {k: k + reverse(k) = n} is not empty, at least one element of S(n) has the same number of digits as n and at least one element of S(n) has one digit less than n has.

Original entry on oeis.org

121, 1111, 11011, 12221, 110011, 121121, 1100011, 1112111, 1197801, 1208911, 1210121, 1211111, 1222221, 11000011, 11111111, 11988801, 12098911, 12100121, 12101111, 12211221, 110000011, 110121011, 111089011, 111101111, 111111011

Offset: 1

Klaus Brockhaus, Sep 21 2003

Subsequence of A067030.

The most significant digit of all terms is 1.

			1111 is a term since S(1111) = {209, 308, 407, 506, 605, 704, 803, 902, 1010, 1100}.

Index entries for sequences related to Reverse and Add!

Cf. A067030, A088169, A088170.

cp's OEIS Frontend

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.

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