A129969 a(n) = A061909(n) with digits reversed.

1, 2, 3, 1, 11, 21, 31, 2, 12, 22, 3, 13, 1, 101, 201, 301, 11, 111, 211, 311, 21, 121, 221, 31, 2, 102, 202, 12, 112, 212, 22, 122, 3, 103, 13, 113, 1, 1001, 2001, 3001, 101, 1101, 2101, 3101, 201, 1201, 2201, 301, 1301, 11, 1011, 2011

Offset: 1

Author

N. J. A. Sloane, Jun 13 2007

Keywords

• nonn
• base

Links

• T. D. Noe, Table of n, a(n) for n=1..5000

Programs

Mathematica

Rest[IntegerReverse/@Select[Range[0,1200],IntegerReverse[#^2]==IntegerReverse[#]^2&]] (* Harvey P. Dale, Dec 01 2024 *)